Search results “Holocene sea level change”
e-lecture: Holocene sea level changes and sea level indicators
An e-lecture from Dr. Niki Evelpidou, assoc. professor at the Department of Geology and Geoenvironmen of National and Kapodistrian University of Athens, Greece to the Faculty of Geography of Aix Marseille University, France . These series of lectures are a collaborative teaching between the two Universities in the scope of the ERASMUS+ KA203 project McAGENDA. For more info visit the projects page: http://mcagenda.geol.uoa.gr
Views: 30 McAgenda UoA
e-lecture: Holocene sea level changes and sea level indicators
An e-lecture from Dr. Dr. Niki Evelpidou, associate professor of the Faculy of Geology and Geoenvironment of National and Kapodistrian University of Athens, Greece to the Department of Earth Sciences of the Aix-Marseille University, France. These series of lectures are a collaborative teaching between the two Universities in the frame work of McAgenda Erasmus + Project. for more info please visit http://mcagenda.geol.uoa.gr/
Views: 70 Niki Evelpidou
Eustatic Sea Level Rise for the British Isles, 25,000 to 5,000 BP
New sea level model based on a modern bathymetric DEM interpolated at 20 year intervals reveals dramatic coastline changes from the Last Glacial Maximum through the Late Holocene.
Views: 5639 TemporalMapping
Coastal Systems: Holocene sea-level and coastal plains
In the field with Simon Haslett, Professor of Physical Geography at the University of Wales and author of Coastal Systems (2016, University of Wales Press). Please leave a comment if you found this video of use in your studies. New videos will be added from time to time, so you may wish to subscribe to this channel. Topics: Holocene, sea-level change, coastal plains, deposition, silts, peats, transgression, regression, reclamation. Location: Snaaskerke (Belgium). Landsurface at sea-level (0m) and 6km inland from the coastline. Latitude/longitude (for Google Earth): 51°10'18.85"N, 2°55'11.51"E. Further reading: S. K. Haslett (2009) Coastal Systems (2nd edition), Routledge: New York and London (see Section 5.1) (available from bookstores and www.routledge.com). Links: Join the Coastal Systems Facebook page at: http://www.facebook.com/pages/Coastal-Systems/89446223373 Further reading: S. K. Haslett (2016) Coastal Systems, 3rd Edition. University of Wales Press, Cardiff, 230pp. Available from : http://www.uwp.co.uk/editions/9781783169009/
Views: 1546 ProfSimonHaslett
Holocene changes in climate and relative sea-level by Ines Tavernier.mov
Holocene changes in climate and relative sea-level in the Lützow-Holm Bay region, East Antarctica By Ines Tavernier Abstract #1278 to be presented at the IPY Montreal Conference FrostBytes -- 'Soundbytes of Cool Research' is a concept developed by the Association of Polar Early Career Scientists (APECS: http://www.apecs.is) to share interesting information about the Polar Regions. These 30-60 second audio or video recordings are designed to help researchers easily share their latest findings to a broad audience.
Views: 1098 IPY2012Conference
e-lecture: Sea level changes and sea level indicators
An e-lecture from Dr. Dr. Niki Evelpidou of Faculy of Geology and Geoenvironment of National and Kapodistrian University of Athens, Greece to the College of Charleston, USA. The lecture hosted up to 100 people. These series of lectures are a collaborative teaching between the two Universities.
Views: 81 Niki Evelpidou
A Mid-Holocene Shift and Millennial-Scale Variations in North Pacific Intermediate Water...
2014 Fall Meeting Section: Paleoceanography and Paleoclimatology Session: Past Ocean's Mode and Intermediate Water Variability II Title: A Mid-Holocene Shift and Millennial-Scale Variations in North Pacific Intermediate Water Oxygenation and Upper Ocean Hydrography Authors: Tiedemann, R, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany Gorbarenko, S A, Pacific Oceanological Institute FEB RAS, Vladivostok, Russia Max, L, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany Lohmann, G, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany Nuernberg, D, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany Gong, X, Cardiff University, Cardiff, United Kingdom Lembke-Jene, L, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany Abstract: The subarctic North Pacific and its marginal seas constitute a key area in which rapid environmental changes over the past decades have been observed in instrumental records, like sea ice decreases, or alterations of nutrient inventories and oxygenation of mid-depth water masses. However, knowledge about the past climatic and oceanographic variability beyond instrumental time series in the subarctic North Pacific and its marginal seas is limited. Few temporally and spatially well-resolved high-resolution and spatially well datasets exist, with spatial and temporal coverage being insufficient to gain a detailed picture of past variations. Our proxydata-based study focuses on a collection of sediment records from the Okhotsk Sea as major source area for well ventilated North Pacific Intermediate Water (NPIW) that cover the last ca. 12,000 years with high temporal and adequate spatial resolution. We decipher rapid changes in NPIW ventilation patterns on centennial to millennial time scales and show that the current ventilation of the mid-depth North Pacific has likely only been prevalent for the last 2 ka. We further provide evidence for a Mid-Holocene shift in mid-depth NPIW ventilation characteristics. Additionally, changes in North Atlantic Deep Water flow speed and patterns are reflected in our records of North Pacific mid-depth water mass dynamics, thus indicating a hemispheric-wide connection between the Atlantic and Pacific regions during the Holocene. Planktic oxygen isotope data suggest a high variability in the stratification of local surface water masses and the formation of sea ice, influencing the formation of new, well ventilated water masses near to our core sites. We compare the main Holocene baseline changes evidenced in our proxy reconstructions to Early Holocene and Pre-Industrial time slice results from the fully-coupled MPI-ESM (COSMOS) Earth System Model, with a focus on the Pacific Ocean to better understand NPIW and upper ocean dynamic changes. Cite as: Author(s) (2014), Title, Abstract PP11C-1375 presented at 2014 Fall Meeting, AGU, San Francisco, Calif., 15-19 Dec. Learn more here: http://abstractsearch.agu.org/meetings/2014/FM/PP11C-1375
Views: 111 AGU
The Last Time the Globe Warmed
Try CuriosityStream today: http://curiositystream.com/eons Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far) Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Special thanks to Nobumichi Tamura for allowing us to use his work: http://spinops.blogspot.com/ Want to follow Eons elsewhere on the internet? Facebook - https://www.facebook.com/eonsshow Twitter - https://twitter.com/eonsshow Instagram - https://www.instagram.com/eonsshow/ References: https://www.colorado.edu/today/2010/08/24/new-study-shows-how-tortoises-alligators-thrived-high-arctic-some-50-million-years-ago http://advances.sciencemag.org/content/3/3/e1600891.full http://geology.geoscienceworld.org/content/38/1/15.full?ijkey=Gz6vWfTZzGpv6&keytype=ref&siteid=gsgeology http://www.sciencedirect.com/science/article/pii/S0012821X15003994 http://science.sciencemag.org/content/192/4241/781 https://www.researchgate.net/publication/245029249_Plant_response_to_a_global_greenhouse_event_56_million_years_ago http://www.pnas.org/content/105/10/3815.full http://onlinelibrary.wiley.com/doi/10.1029/1999GB001195/abstract https://www.e-education.psu.edu/earth103/node/639 https://earthobservatory.nasa.gov/Features/Paleoclimatology_OxygenBalance/ http://www.palaeontologyonline.com/articles/2011/the-paleocene-eocene-thermal-maximum/ http://www.nature.com/ngeo/journal/v9/n4/abs/ngeo2681.html http://cdiac.ess-dive.lbl.gov/trends/emis/tre_glob_2014.html http://cdiac.ess-dive.lbl.gov/ftp/ndp030/global.1751_2014.ems https://www.sciencealert.com/carbon-emissions-now-higher-than-they-ve-been-since-the-dinosaurs-went-extinct https://www.nature.com/ngeo/journal/v4/n7/full/ngeo1179.html https://ucsdnews.ucsd.edu/pressrelease/disappearance_of_coral_reefs_drastically_altered_marine_food_web_on_the_hor https://earthobservatory.nasa.gov/Features/GlobalWarming/page3.php http://www.ei.lehigh.edu/eli/cc/resources/readings/iscurrent.pdf http://people.earth.yale.edu/paleoceneeocene-thermal-maximum http://pages.geo.wvu.edu/~kammer/g231/PETM.pdf http://www.scotese.com/newpage9.htm http://all-geo.org/highlyallochthonous/2010/01/coal-and-the-fossil-record-of-climate-change-in-the-canadian-high-arctic/ http://academic.evergreen.edu/z/zita/meetings/Chau07/present/CarbonCycle.pdf http://naturalhistory.si.edu/ete/ETE_People_Wing_ResearchThemes_Wyoming.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4948332/ http://ngm.nationalgeographic.com/2011/10/hothouse-earth/kunzig-text/1 http://www.sciencedirect.com/science/article/pii/S0921818117300723 https://www.livescience.com/15597-primate-oldest-fossil-fingernails.html https://news.nationalgeographic.com/news/2002/11/1121_021121_PrimateOrigins_2.html http://electronic-earth.net/3/19/2008/ee-3-19-2008.pdf https://www.geolsoc.org.uk/Geoscientist/Archive/June-2014/The-Arctic-Azolla-event https://www.nature.com/articles/ngeo1179.epdf?referrer_access_token=4VJfM12-Bke0u7yNAQrdW9RgN0jAjWel9jnR3ZoTv0M9N_6CDYtcTDVJIMWPdxeFMCNsV3K0EIxvtcQpV06fZjTyZ6T7lyyizBoY0zL-CPBpPMJv986FX1njYRF-W4EqSgQKe-_W5T0FLgJSTENZSAmV35S5lMgxuhsef9Pka9vKqPOphclpl-VY46vMc7XzaZ-fGB50Pf9PxuqM28eLeGSconG9lypd3899nbUJc3d-lGFGN4s8I1IHHwdgcNOk&tracking_referrer=www.bbc.com http://www.whoi.edu/fileserver.do?id=136084&pt=2&p=148709
Views: 3157152 PBS Eons
Reframing Sea Level Rise | Andrea Dutton | TEDxUF
Andrea Dutton approaches sea level rising in a different way, exploring the effects of climate change in the future. Dr. Andrea Dutton is an assistant professor in the University of Florida Department of Geological Sciences. Her research focuses on reconstructing sea level during past warm periods. By studying how seas have risen in the past, Dutton aims to better inform us about future sea-level rise. She travels to field sites around the globe to collect data on the rates, magnitude, and timing of past sea level and climate changes. Dutton has recently dedicated time to public officials and science communication to better inform decisions impacted by rising sea levels. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
Views: 5745 TEDx Talks
7.a Transgression & Regression
Students learn about how rising and falling sea-levels change the sequence of rock layers.
Views: 69718 Patrick Baldwin
Global vs Local Sea Level
Rising global sea level is one of the most commonly cited consequences of climate change, but it’s often unclear how it might affect people living on the coasts. A rise in global sea level occurs due to the warming of the ocean and the addition of fresh water into the ocean basins from melting ice on land. Local sea level, known as relative sea level change, is affected by global sea level fluctuations, changes in land elevation, winds, and ocean circulation. Original video source: http://oceantoday.noaa.gov/globalvslocalsealevel/ Ocean Today is an interactive exhibit that plays short videos on ocean related themes. Visitors can select from 150+ videos on topics ranging from deep-­‐sea exploration, marine species, and restoration projects to hurricanes, oceans and human health, and climate science and research. These videos are a free resource and are available on our website at oceantoday.noaa.gov.
Views: 4273 usoceangov
Projections of climate and sea level change
This was one of the talks presented during the Permanent Service for Mean Sea Level 80th Anniversary Workshop on Sea-Level Science. It is given by Jonathan Gregory.
Views: 255 NOC news
Everything's Moving: Relative Sea Level Rise Explained
Josh Kent of Louisiana State University gives a simple explanation of how sea level rise from climate change and sinking of the land both contribute to coastal changes. Video produced by the Climate.gov team in cooperation with climate and Earth scientists from the National Oceanic and Atmospheric Administration and other agencies and institutions. Any opinions voiced by people in these videos are their own; they are not official NOAA statements or opinions. Unless specifically stated otherwise, Climate.gov video productions can be freely republished or re-purposed by others.
Views: 2032 NOAAClimate
Late-Glacial/Early Holocene Palaeoenvironments and Evidence for the 8.2 ka Event in the North Sea
Late-Glacial/Early Holocene Palaeoenvironments and Evidence for the 8.2 ka Event in the Southern North Sea Basin: New Data from the Dudgeon Offshore Wind Farm It is well known that the North Sea conceals an extensive Late Pleistocene and early Holocene palaeolandscape. Archaeological finds from the seabed show this former landscape was occupied by humans during periods when sea-levels were significantly lower than today and the British Isles formed the north-western promontory of the European continental shelf. Renewed interest in submerged palaeolandscapes has occurred chiefly in response to increasing pressure from commercial aggregate dredging, oil and gas exploration and offshore windfarm developments. This paper presents the results of an integrated palaeoenvironmental study (pollen, foraminifera, ostracods, plant macrofossils, molluscs) of organic sediments taken as part of geoarchaeological investigations on the site of the Dudgeon Offshore Wind Farm. The sediments cover a period of as much as 4,400 years (12,700-8300 cal yr BP), including a substantial peat covering the late Devensian/early Holocene transition (12,700-9260 cal yr BP). During the late Glacial the local environment is characterised by sub-alpine plant communities with open birch woodland, followed by development of birch and hazel woodland during the early Mesolithic. A phase of marine inundation occurred around 9500-9000 cal yr BP, with a final marine inundation of the area around 8400 cal yr BP, possibly linked to a meltwater pulse following the collapse of the Laurentide icesheet, precipitating major palaeogeographic and climatic changes within and beyond the North Sea. The results begin to address the deficiency in detailed palaeoenvironmental studies from the area, providing new data on patterns of physical, vegetation and environmental change in the context of rising post-glacial sea-levels Alex Brown 1,2, Jack Russell 1, Rob Scaife 3, John Whittaker 4, Sarah Wyles 5 1 Wessex Archaeology, Salisbury, UK 2 Department of Archaeology, School of Archaeology, Geography and Environmental Sciences, University of Reading, UK 3 Geography and Environmental Sciences, University of Southampton, UK 4 Department of Palaeontology, The Natural History Museum, London, UK 5 Cotswold Archaeology, Hampshire, UK
Views: 1614 Recording Archaeology
Climate of The Holocene, From the End of the Ice Age to The Present  as Derived From Ice Cores
Ice cores from Greenland and Northern Canada tell a consistent story of changes in the climate over many millennium. This story is presented from the end of the last ice age 11750 years ago to the present and the major climate events related to examples of societal response. David Fisher
Views: 445 Madeleine Aubrey
Effects of Sea Level Changes in Europe and the U.K Over the Last 500 Thousand Years
During the Pleistocene and Holocene epochs, the global sea level has varied tremendously due to the advance and retreat of glaciers. This animation, created using the Wolfram Language via Mathematica (https://community.wolfram.com/groups/-/m/t/1609980), shows the visible effect on the coast lines of Europe and the U.K. over the last 500,000 years. It makes use of data from De Boer, B., R.S.W. Van de Wal, R. Bintanja, L.J. Lourens and E. Tuenter, "Cenozoic global ice-volume and temperature simulations with 1-D ice-sheet models forced by benthic d18O records", Annals of Glaciology, 51 (55), 23-33, 2010.
Views: 18 Jeff Bryant
Showing most of the Holocene was warmer
Tips on doctoring other people's graphs Original graph: http://en.wikipedia.org/wiki/File:Holocene_Temperature_Variations.png Don Easterbrook: http://www.youtube.com/watch?v=bzUfMIMuE2A Source of the story: http://hot-topic.co.nz/cooling-gate-easterbrook-fakes-his-figures-hides-the-incline/
Views: 1760 cristop5
Sea Level Danger Worse Than We Thought
Subscribe to The Zero Hour with RJ Eskow for more: https://www.patreon.com/thezerohour If you liked this clip of The Zero Hour with RJ Eskow, please share it with your friends... and hit that "like" button! Some of the music bumpers featuring Lettuce, http://lettucefunk.com.
What is sea level rise?
John Church, CSIRO Fellow Centre for Australian Weather and Climate Change explains sea level rise. For more information see http://www.cmar.csiro.au/sealevel/index.html
Views: 1788 GreenCrossAustralia
Holocene glacial retreat - Video Learning - WizScience.com
"Holocene glacial retreat" had a profound effect on landscapes in many areas that were covered by ice at the Last Glacial Maximum. The many valleys of the Cairngorms, a mountainous region in the Eastern Scottish Highlands are littered with deposits from this period. A significant event spurred by the deglaciation was Meltwater pulse 1A. The modern Ohio River was formed when the river was temporarily dammed just southwest of Louisville, Kentucky, creating a large lake until the dam burst. The Ohio River largely supplanted the former Teays River drainage system, which was disrupted by the glaciers. Ancient Lake Chicago, on the southern margin of the Wisconsin Glacier, found successive lower outlets as the glacier retreated, until the Saint Lawrence River route was uncovered. Corresponding to each level, remnant lake shore features may be found in many areas. One prehistoric shoreline is delineated by Bluff Avenue, a north-south street on the La Grange, Illinois east side. The retreat and shrinking of Pleistocene ice sheets, ice caps, and mountain glaciers resulted in the addition of enormous quantities of water to the oceans and seas of the world. As result, sea level rose significantly globally resulting in extensive retreat of their shorelines around the world. In some areas, the sea level retreated inland rapidly as a result of rising sea level. When sea levels were low, the combined Tigris-Euphrates river flowed through a wide flat marshy landscape. The Persian Gulf today has an average depth of only 35 m. During the most recent glaciation, which ended 12,000 years ago, worldwide sea levels dropped 120 to, leaving the bed of the Persian Gulf well above sea level during the glacial maximum. It had to have been a swampy freshwater floodplain, where water was retained in all the hollows. High in the Taurus Mountains glaciation would have been extensive. Wiz Science™ is "the" learning channel for children and all ages. SUBSCRIBE TODAY Disclaimer: This video is for your information only. The author or publisher does not guarantee the accuracy of the content presented in this video. USE AT YOUR OWN RISK. Background Music: "The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library. This video uses material/images from https://en.wikipedia.org/wiki/Holocene+glacial+retreat, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . To reuse/adapt the content in your own work, you must comply with the license terms.
Views: 377 Wiz Science™
Sea Level Rise & Climate Refugees
HOW TO LET GO OF THE WORLD: AND LOVE THE THINGS CLIMATE CAN’T CHANGE is a documentary about the impact climate change is having on our planet. Director Josh Fox breaks down the realities facing our planet as we attempt to combat climate change from sea level rise to climate refugees. Fox also expresses the importance of applying the idea of justice to the climate change battle in this BYOD highlight hosted by Ondi Timoner. Watch the full BYOD episode here: https://www.youtube.com/watch?v=UM1QSWThTfc&list=PLjk3H0GXhhGdZbrANmO6kYPy8IQC0GiN_&index=2 BYOD Full Episodes Playlist: https://www.youtube.com/watch?v=sYs3uKjbbUM&index=1&list=PLjk3H0GXhhGdZbrANmO6kYPy8IQC0GiN_ BYOD Short Clips Playlist: https://www.youtube.com/watch?v=hDvL616NNy0&list=PLjk3H0GXhhGeu2DCf6Ouo7hTsA5QB2MAL&index=1 http://www.thelip.tv www.thelip.tvhttp://www.youtube.com/theliptv https://www.facebook.com/BYODOC?directed_target_id=0 https://www.facebook.com/thelip.tv?ref=hl
Views: 1248 TheLipTV
100 Million Years of Sea-Level Change: Should I Sell my Shore House?
A lecture by Dr. Kenneth Miller, professor and Chair, Dept. of Earth & Planetary Sciences, Rutgers University.
Salt marshes as late holocene tide gauges
This was one of the talks presented during the Permanent Service for Mean Sea Level 80th Anniversary Workshop on Sea-Level Science. It is given by Natasha Barlow.
Views: 96 NOC news
City holds sea level rise meetings
Flooding and sea level rise are major concerns for all of Hampton Roads
Views: 47 13News Now
Part 13: Climate Change - Misleading Media Reports On Sea Level Rise - A Case Study
This addresses a response to Peter's video "Part 11A: Climate Change - Hurricanes, Atolls And Corals," which, on investigation, revealed a major error by a news agency and a TV network. The moral of the story is that sticking the label "Global Warming" onto anything that moves is not going to help public understanding of climate science. This video series is made by the former science correspondent Peter Hadfield who has a genuine interest in reporting the facts, not the media hype. Peter runs the very popular YouTube channel potholer54 and it is for this channel he originally made this series. The Flagship Movement is always working towards informing the general public about anything related to sustainability and as climate change in recent years have become a central part of any sustainability work, and the debate about it have become so infected with unscientific nonsense - we felt that we needed to try and clear things up a bit using the actual science. We felt that Peter's YouTube series are among, if not THE best regarding the issue of climate change. SOURCES FOR THIS VIDEO: "Rising Water threatens Panama islands" -- Al Jazeera http://www.youtube.com/watch?v=s4m_Tx... "Rising sea drives Panama islanders to mainland" by Sean Mattson, Reuters July 12, 2010 http://www.reuters.com/article/idUSTR... Map of Caribbean tectonics from: "Wide Plate Margin Deformation, Southern Central America and Northwestern South America" R. Trenkamp et al. http://estrella.geol.sc.edu/~agl/CASA... Paper showing influence of subsidence on tidal guages: "Changing coastal levels of South America and the Caribbean region from tide-gauge records" - D.G. Aubreya et al, 1988 Map showing isostatic uplift of Britain: http://www.neccap.org/NE%20Adapt/Clim...
Views: 254 permahome
Coastal Systems: Mangroves and Sea-Level
In the field with Simon Haslett, Professor of Physical Geography at the University of Wales and author of Coastal Systems (2016, University of Wales Press). Please leave a comment if you found this video of use in your studies. Topics: mangroves (mangals), geomorphology, sea-level rise, progradation, global warming, climate change, ecology, coastal defence, cyclones. Location: Thomatis Creek, Barron River Delta (Cairns, Queensland, Australia). Latitude/longitude (for Google Earth): 16°49'13.69"S, 145°43'56.96"E. Further reading: S. K. Haslett (2016) Coastal Systems, 3rd Edition. University of Wales Press, Cardiff, 230pp. Available from : http://www.uwp.co.uk/editions/9781783169009/ (see Section 5.3.2).
Views: 1508 ProfSimonHaslett
Sea level changes: Observations
This was one of the talks presented during the Permanent Service for Mean Sea Level 80th Anniversary Workshop on Sea-Level Science. It was given by Anny Cazenave.
Views: 216 NOC news
25. Ice and climate change
The Atmosphere, the Ocean and Environmental Change (GG 140) Ice on earth is sensitive to climate change and ice plays a role in climate change processes. Recent trends in the Greenland ice sheet provide an important example. Over the past two decades the extent of surface melt water on the ice sheet has increased. Inaddition, satellites have detected a decrease in the overall mass of the Greenland Ice Sheet. . Paleoclimate is also discussed in this lecture, with a focus on climate over the last 5 million years. The mid-Pliocene was a particularly warm period from 3.3-3 million years before present. The Pleistocene was a more recent cold period ending with the Last Glacial Maximum about 14,000 years before present. In comparison, the Holocene (12,000 years ago to present) has been a relatively warm stable climatic period. Geomorphology is used to determine the extent of continental ice in the past. 00:00 - Chapter 1. Mountain Glaciers 08:18 - Chapter 2. Greenland Glacier Trends 11:23 - Chapter 3. Satellite Measurements of Ice 15:57 - Chapter 4. Climate of the Last 5 Million Years 34:30 - Chapter 5. Geomorphology 42:51 - Chapter 6. Last Glacial Maximum 46:11 - Chapter 7. Stable Isotopes of Water Complete course materials are available at the Open Yale Courses website: http://oyc.yale.edu This course was recorded in Fall 2011.
Views: 6693 YaleCourses
Holocene Arctic Climate Variability: Past, Present and Future
Ray Bradley, from the Climate System Research Center in UMASS Amherst, reviews how changes in Earth’s orbital relationship to the sun, and consequent changes in insolation, produced warming in the early Holocene akin to what we can expect with projected anthropogenic warming of 2-degrees centigrade. Bradley explains how the dominant feature of the temperature record over that time span has been a slow decline, followed by a recent sharp rise. Warm temperatures of the early Holocene occurred when the Earth was closest to the sun during summer. 10,000 years later, we are closest during January. As a consequence, he notes, wintertime polar temperatures demonstrate an increase 2-3 times greater than mean global annual temperature increase. During summer, polar amplification is “merely” double the global average. Reappearance of blue mussels in Svalbard (last seen in the early Holocene), are evidence that it may indeed be an analog for further changes yet in store.
Views: 1133 YaleUniversity
Regional sea-level rise projections
This was one of the talks presented during the Permanent Service for Mean Sea Level 80th Anniversary Workshop on Sea-Level Science. It is given by Caroline Katsman. http://www.psmsl.org/about_us/news/2013/workshop_2013
Views: 249 NOC news
Climate Change Analysis - Sea Level's Historic rise and fall compared to current Sea Levels
An analysis of historical scientific data allows current sea levels to be viewed within an historical context and hence put into perspective.
Climate Change Indicators & Impacts
In the newest IPCC report, scientists warn that if the earth warms by another 1.5 or 2 degrees Celsius, we could see an ice-free Arctic and an ocean devoid of coral reefs by the turn of the century. The IPCC report cites specific examples of how impacts of global warming would be lessened with the 1.5 degree Celsius increase, compared to the 2 degree Celsius increase: -- Global sea levels would rise 10 cm lower by 2100. -- The likelihood of an Arctic Ocean free of sea ice in summer would be once per century, instead of at least once per decade. -- Coral reefs would decline by 70% to 90% instead of being almost completely wiped out.
Views: 44 MCK Green Machine
Baltic Sea, sea level change 200 - -200 m
The video shows the Baltic Sea on an altitude-colored, relief-shaded map with present coastline outlined, while the sea level drops from 200 m above present to 200 m below. The map is centered on 59°N 19°E, with a 15° vertical field of vision and 2.3 km/px resolution. CC BY 2018 SeaLevelRise.se, http://sealevelrise.se, rendered using custom PERL script, ImageMagick and FFmpeg, from open geodata, the GEBCO_2014 Grid, version 20150318, http://www.gebco.net . The video is part of the collection Sea Level Change, https://www.youtube.com/playlist?list=PL6SgRGKF7pUyRKWRfkX1REdOuQet_Tcue
Views: 96 Magnuz64
The impact of urbanization and sea level rise on Alabama coastal waters
Dr. Behzad Mortazavi from the Department of Biological Sciences (UA)/Dauphin Island Sea Lab presenting at the University of Alabama - National Water Center Water Research Group weekly meeting (http://tinyurl.com/UAWater).
Prof. Dean' s lecture on sea level acceleration
Lecture given by Prof. Robert G.Dean on "Sea level acceleration: based on an analysis of tide gauge records", given at the 9th International Conference on Coasts, Ports and Marine Structures (in Teheran, Iran)
The Dutch Landscape 4 - The Early Holocene
In this video we explore the first 3000 or so years after the last glaciation in the Netherlands and the influence of the rapid temperature and sea level rise that occurred during the Early Holocene
Views: 806 Daniël Hoenderdos
Prehistoric Climate Change
This film was created as a teacher resource for a KS3 and KS4 Geography lesson called "How did climate change affect prehistoric people?". THis simple animation shows how the UK coastline changed towards the end of the Ice Age. In 2008, the Marine Aggregate Levy Sustainability Fund (MALSF) commissioned Regional Environmental Characterisation (REC) research into four main dredging regions in the United Kingdom -- the Thames, South Coast, East Coast and Humber. These studies involved experts from universities, survey companies and heritage organisations investigating the archaeology, geology and ecology of the seafloor. The aim of the studies was to ensure that we use the sea sustainably, without damaging its natural or physical heritage. This film was produced by Wessex Archaeology as part of the Explore the Seafloor project, funded by MALSF to promote the results of the RECs.
Views: 1030 ExploretheSeafloor
PP31E - Emiliani Lecture - Holocene Changes in the Indonesian Throughflow Region
PP31E Emiliani Lecture Holocene Changes in the Indonesian Throughflow Region Presented by Delia Oppo, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA
Views: 266 AGU
Quaternary glaciation
Quaternary glaciation, also known as the Pleistocene glaciation or the current ice age, refers to a series of glacial events separated by interglacial events during the Quaternary period from 2.58 Ma to present. During this period, ice sheets expanded, notably from out of Antarctica and Greenland, and fluctuating ice sheets occurred elsewhere. The major effects of the ice age are erosion and deposition of material over large parts of the continents, modification of river systems, creation of millions of lakes, changes in sea level, development of pluvial lakes far from the ice margins, isostatic adjustment of the crust, and abnormal winds. It affects oceans, flooding, and biological communities. The ice sheets themselves, by raising the albedo, effect a major feedback on climate cooling. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 2305 Audiopedia
Underworld - Flooded Kingdoms of the Ice Age I
Plato's Story of Atlantis In 360 BC, the famous Greek philosopher Plato wrote about a battle between his city Athens and a great empire named Atlantis. He described this war, which ended when Atlantis disappeared in the ocean due to "violent earthquakes and floods," in two of his books: "Timaeus" and "Critias" (https://spaceandai.com/project/platos-story-of-atlantis). According to Plato, all this happened 9,000 years before his time which would be at least 9,400 BC, some 12,400 years ago. Intriguingly, this also corresponds to the period when the geological age of the Younger Dryas suddenly ended with an abrupt warming of more than 10°C in only a few years. This event marked the beginning of the Holocene, the era in which we are still living today. Sea levels must have risen rapidly and dramatically, and as a result entire civilizations, if any existed, would have disappeared under water. It's still unclear what caused the extreme climate change that ended the Younger Dryas around 9,700 BC, although some evidence seems to point to solar activity. Whether Atlantis really existed is hard to say. In that time, sealevels were at least 80 to 100 meters lower than today. Therefore, if there were any archeological evidence, one would have to look deep in the bottom of the sea, but nothing has been found sofar. Plato's main concern was probably with illustrating his political views rather than being historically accurate. He was very much opposed to Athen's new democracy and held the opinion that it would inevitably lead to dictatorship and tyranny. Indeed, Atlantis owed its greatness, according to Plato, to the oligarchy that happened to govern the city-empire exactly the way he propagated in his work “The Republic.” Moreover, only the first 20 pages of Plato's narrative have been preserved. It remains remarkable though, how Plato's story reflects climatic events and other facts of which he could not have had any direct knowledge. For instance, he explains how in ancient times, the higher and less fertile areas were inhabited by primitive pastoral peoples, while the more advanced civilizations lived in the coastal regions, which is why they could escape the catastrophic rise in sea levels that struck the coastal regions and destroyed everything that lived there. Plato tells us that only the Egyptian culture was saved from this due to its special location further inland in the Nile valley. Other intriguing issues, such as the frequent use of “orichalcum” in Atlantis, are mentioned in the “Critias” as well. This mysterious metal is very reminiscent of tumbaga, an alloy of gold and copper in varying proportions which was much used by the Inca and other peoples in the New World. This, however, became known only 2,000 years later after Columbus discovered America. Plato wasn't the first to mention Atlantis as it is often believed. In Herodotus' time, the sea outside Gibraltar was on occasion called the Atlantis Sea. In the Great Hall of the temple of Ramses at Karnak a column shows a depiction of a great festival, along with an accompanying text memorializing “the loss of a drowned continent in the Western Ocean.” Plato described Atlantis as being ruled by ten kings and Egyptian king-lists going back thousands of years before Plato also talk of ten god-kings called “Atlanteans.” The Sanskrit writings of ancient India contain several descriptions of Atlantis, and even assert that Atlantis was destroyed as the result of a war between the gods and Asuras (giant and sometimes demonic creatures). The Vishnu Purana, one of the oldest of the Hindu Puranas, speaks of "Atala, the White Island," one of the seven islands belonging to Patala. The Mahabharata also refers to "Atala, the White Island," which is described as an "island of great splendour." Megalithic structures like the Sphynx in Egypt, Göbekli Tepe in Turkey and maybe even Yonaguni in Japan that were build more than 10.000 years ago, point to the existence of advanced cultures in ancient times. But wether Atlantis is more than just a myth, and where it was located, remains a mystery. (2014) Created in 2002 by Graham Hancock. In 2015 he published his latest sequel ‘Magicians of the Gods’: https://youtu.be/KcPgIphDWGY http://www.grahamhancock.com Space and AI https://spaceandai.com
Views: 806245 Space And Intelligence
Top 10 Climate Change Lie #4 Exposed: Global Warming causes droughts
Remember to subscribe! ↓↓↓ More info and sources below ↓↓↓ This Climate Change Lies Exposed video series is an expansion on the following: Top 10 Climate Change Lies Exposed https://youtube.com/watch?v=ICGal_8qI8c The first video in this series is: Climate Change Lie #1 Exposed: Global Warming is Bad https://youtube.com/watch?v=KbfjEPo083U The next video in this series is: Climate Change Lie #5 Exposed: The Current Warmth is Unusual https://youtube.com/watch?v=FR2aZc5bjUU Patreon: If you like this video, consider supporting me on Patreon so I can produce more of these more often. https://patreon.com/rodmartinjr Book: Thermophobia: Shining a Light on Global Warming https://tharsishighlands.wordpress.com/books/thermophobia-global-warming/ Book: Red Line -- Carbon Dioxide: How humans saved all life on Earth by burning fossil fuels https://tharsishighlands.wordpress.com/books/red-line-carbon-dioxide-fossil-fuels/ For more information on climate: https://globalwarmthblog.wordpress.com/ http://drroyspencer.com/ https://wattsupwiththat.com/ And for improving your critical thinking skills: https://tharsishighlands.wordpress.com/products/courses/critical-thinking-academy-boost-awareness-intelligence/ Other Climate Videos: Top 10 Reasons Global Warming is Good https://youtube.com/watch?v=dQc4iXgrrEo How Global Warming Made Civilization Possible https://youtube.com/watch?v=057GgxpZWRc Top 10 Climate Change Lies Exposed https://youtube.com/watch?v=ICGal_8qI8c KEYWORDS AND TOPICS: climate change, global warming, droughts, deserts, fooled, hot deserts, dead animals, dying animals, dying plants, warming, planet, warmer climate, dry out, rain, evaporation, oceans, Ice Age, interglacial, Holocene, Earth’s climate, temperature, dryness, desiccation, land, water, oceans, lakes, rivers, sun, warms up, evaporating, water vapor, higher altitudes, cloud droplets, clouds, misinformation, ad hominem, name-calling, mathematically challenged, liars, propaganda, falsehood, snow, Antarctic, Arctic region, deserts, polar deserts, Sahara, hot desert, mountains, Global Warming, sequestering, Greenland, Baffin Island, Arctic islands, Antarctica, sea level rise, temporary reversal, accumulation of snow, polar regions, settlers, green Sahara, grasslands, forests, desert, pictographs, Lake Chad, inland sea, Caspian, Medieval Warm Period, Roman Warm Period, Minoan Warm Period, greater prosperity, famines, societal collapses, Greek Dark Ages, Medieval Dark Ages, Little Ice Age, cooling, society, abundant harvests, difficult time surviving, people starve, glacial period, start a civilization, agriculture, farming the land, irrigation, rivers, global human population, glacial period, Holocene Optimum, cooler planet, grasslands, deserts, nomadic people, Nile, Scorpion King’s war, decreasing resources, formalization of civilization, Nile River Valley, 4th millennium BC, planet, warmer planet, garden SOURCES: (coming soon...)
Views: 2121 Rod Martin, Jr.
Eustasy, 2014
© Oscar Woodruff /ˈyo͞ostəsē/ noun 1. a change of sea level throughout the world, caused typically by movements of parts of the earth's crust or melting of glaciers.
Views: 184 Oscar W
Dr. Ian Miller: Sea level rise in Washington state (Cherry Point Forum 2017)
Dr. Ian Miller is Washington Sea Grant’s coastal hazards specialist, working out of Peninsula College in Port Angeles and the University of Washington’s Olympic Natural Resources Center in Forks. This presentation provides an overview and preliminary results from an in-process new assessment for sea level rise in Washington State.
Study Shows Growing Threat Of Rising Sea Levels In Santa Cruz
Devin Fehely reports on Santa Cruz study that outlines what coastal neighborhoods are at risk in face of rising sea levels (12-5-2017)