Famiglietti an Earth system science professor in the School of Physical sciences and colleague Min-Hui Lo a postdoctoral researcher at the University of California Center for Hydrologic Modeling who is now at National Taiwan
#New Antarctic geological timeline aids future sea-level predictionsradiocarbon dates of tiny fossilised marine animals found in Antarctica's seabed sediments offer new clues about the recent rapid
Reporting this month in the journal Geology a team of researchers from British Antarctic Survey (BAS) the Alfred Wegener Institute for Polar and Marine Research (AWI)
if the recent rapid changes are unusual in the geological past. The team studied the average rate of glacial retreat since the end of the last Ice age around 12000 years ago.
Some of the radiocarbon dating work was undertaken at the Natural Environment Research Council Radiocarbon Facility (Environment.
and visualizing Earth science data from a NASA and U s. Geological Survey satellite program is resulting in for the first time the ability to tease out the small events that can cause big changes in an ecosystem.
Called Landtrendr this computer program is able to find patterns previously buried within vast amounts of scientific data.
Kennedy created the Landtrendr program specifically to work with data from the NASA and U s. Geological Survey (USGS) Landsat program.
and Thomas Veblen from CU-Boulder John Stednick from Colorado State university Charles Rhoades from the U s. Forest Service Jennifer Briggs and David Clow from the U s. Geological Survey
Consulting geologist Stewart Redwood determined that the cache consists of a small dacite stone fashioned into a cylindrical tool;
The tree-ring data from the Tatra Mountains best reflects the climate history of Eastern europe with a geographical focus on the Baltic.
It doesn't make geographic sense right away but such a finding forces researchers to ask more questions about how these groups migrated
Rocks melt at greater depth than once thoughtmagma forms far deeper than geologists previously thought according to new research at Rice university.
A group led by geologist Rajdeep Dasgupta put very small samples of peridotite under very large pressures in a Rice laboratory to determine that rock can
That has confounded geologists who suspected but could not demonstrate the existence of deeper silicate magma said Dasgupta an assistant professor of Earth science at Rice.
Scientists determine the mantle's density by measuring the speed of a seismic wave after an earthquake from its origin to other points on the planet.
and geologists have been surprised to detect waves slowing down through what should be the mantle's express lane.
Seismologists have observed anomalies in their velocity data as deep as 200 kilometers beneath the ocean floor Dasgupta said.
Our field of research is called experimental petrology he said. We have all the necessary tools to simulate very high pressures (up to nearly 750000 pounds per square inch for these experiments) and temperatures.
Research Professor Anthony Withers and Marc Hirschmann the George and Orpha Gibson Chair of Earth and Planetary Sciences at the University of Minnesota and Greg Hirth a professor of geological sciences
& Hydrology and colleagues in a review published this month in Frontiers in Ecology and the Environment:
Scientists with the U s. Geological Survey and Eckerd College recently published research on a newly discovered refuge for reef-building corals in mangrove habitats of the U s. Virgin islands.
The above story is provided based on materials by United states Geological Survey. Note: Materials may be edited for content and length.
The research published on Sept. 29 as a supplement to this month's issue of the Bulletin of the American Meteorological Society is one of the most comprehensive studies to investigate the link between climate change and California's ongoing drought.
and animal populations that are so pervasive as to warrant classification of a new geologic period in Earth's history--the Anthropocene the Age of Humans.
This change in environment can affect stream hydrology and biogeochemistry said Dodds who has studied streams
and raised by their parents at the U s. Geological Survey's Patuxent Wildlife Research center in Laurel Maryland were released on the U s. Fish and Wildlife Service's Necedah National Wildlife Refuge in Wisconsin.
The above story is provided based on materials by United states Geological Survey. Note: Materials may be edited for content and length h
The study available online this week in the journal PLOS ONE offers the first detailed explanation for the hydrological mystery.
Not all biochar is created equal and one of the important lessons of recent studies is that the hydrological properties of biochar can vary widely depending on the temperature
Barnes said the team chose to make its comparison with simple relatively homogenous soil materials to compare results to established hydrologic models that relate water flow to a soil's physical properties like bulk density and porosity.
Study co-author Brandon Dugan assistant professor of Earth science at Rice said We hypothesize that this is likely due to the presence of two flow paths for water through soil-biochar mixtures.
and more severe as a result of fire suppression that allowed forest fuels to build up in the past century is still prevalent among some said CU-Boulder geography Professor Thomas Veblen a study co-author.
Scripps Institution of Oceanography La jolla California; Arizona State university Tempe; University of Michigan Ann arbor; University of Colorado Boulder;
The scientists were careful to find a gradient of temperature change where potentially confounding factors were held constant including vegetation composition disturbance history geology and soil type and moisture.
and location'said Professor Rich Grenyer of Oxford's School of Geography and the Environment the coordinating author of the study.'
and a postgraduate student at the University of Oxford's School of Geography and the Environment explained:'
A new report by the Environmental Change Institute (ECI) at the School of Geography and the Environment at the University of Oxford concludes that better governance could have lessened the impact on the poorest and most vulnerable and affected populations have been let down by the authorities in the past.
#Tree rings used to determine history of geological features, arroyosa new GSA Bulletin study uses tree rings to document arroyo evolution along the lower Rio Puerco and Chaco
Study authors Jonathan Friedman of the U s. Geological Survey and colleagues note that although the channels of the Rio Puerco and Chaco Wash are narrow like an erosional gully
The above story is provided based on materials by Geological Society of America. Note: Materials may be edited for content and length.
Hole Oceanographic Institution David Stahle at the University of Arkansas Ryan Rykaczewski at the University of South carolina Steven Bograd at NOAA's Southwest Fisheries science Center and William Peterson at NOAA
This research was funded by the National Science Foundation's Biological Oceanography Program and the National Oceanic and Atmospheric administration's Fisheries and Environment Program.
Mark D. Schwartz a distinguished professor of geography at the University of Wisconsin-Milwaukee explained that fall leaf coloration marks the end of the growing season in temperate climates
--which is more complex and dependent on geography--is more difficult for scientists to characterize Schwartz said.
The fossilized leaf samples span the last 1400000 years of the Cretaceous and the first 800000 of the Paleogene.
which at the end of the Cretaceous was a lowland floodplain crisscrossed by river channels. The collection consists of more than 10000 identified plant fossils
Numerous previous studies have shown that casings fail between 1 percent and 10 percent of the time depending on geology and well construction.
at the U s. Geological Survey. I am proud that these agencies have collaborated with the Smithsonian and many others on today's report.
This is according to the World meteorological organization's annual Greenhouse Gas Bulletin which injected even greater urgency into the need for concerted international action against accelerating and potentially devastating climate change.
and attenuator of climate change becomesa central part of climate change discussions said Wendy Watson-Wright Executive secretary of the Intergovernmental Oceanographic Commission of UNESCO.
which protects us from the harmful ultraviolet rays of the sun. Ocean Acidificationfor the first time this Bulletin contains a section on ocean acidification prepared in collaboration with the International Ocean Carbon Coordination Project (IOCCP) of the Intergovernmental Oceanographic Commission of UNESCO (IOC
and archived and distributed by the World Data centre for Greenhouse Gases (WDCGG) at the Japan Meteorological Agency.
http://ds. data. jma. go. jp/gmd/wdcgg) The summary on ocean acidification was produced jointly by the International Ocean Carbon Coordination Project (IOCCP) of the Intergovernmental Oceanographic Commission of UNESCO
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Radiocarbon dating of ancient peach stones (pits) discovered in the Lower Yangtze river Valley indicates that the peach seems to have been diverged from its wild ancestors as early as 7500 years ago.
and rice crops about a third of the country's poor according to Sachin Ghude an atmospheric scientist at the Indian Institute of Tropical Meteorology (IITM) in Pune India and lead author of the new study.
and atmospheric sciences at Scripps Institution of Oceanography at the University of California San diego and a co-author of the new study.
Scientists also found similarities to 600 million year-old Precambrian extinct life forms suggested by some to be failed early
Analysis of time series data by Cassie Gurbisz and Michael Kemp of the University of Maryland Center for Environmental science's Horn Point Laboratory was published in the March 2014 issue of Limnology and Oceanography.
The scientists demonstrated how three societies living on the slopes of Mount Kenya have shaped the geographic distribution and structure of the genetic diversity of local varieties.
and phenotypically differentiated despite their close geographical proximity. This study sheds light on the debate on the ownership and redistribution of benefits from genetic resources.
and agronomists this work shows the role of human societies in the geographic distribution and evolution of the genetic diversity of crop plants.
He was recognised hitherto that the development of this practice thanks to the abundance of the resources created had enabled the demographic and geographical growth of the population having adopted it
Understanding of Sierran hydrology has improved recently with the National Science Foundation's Critical Zone Observatory
In their study for Geology published online on 28.aug 2014 researchers Camilla Crifã and colleagues used leaf vein density a trait visible on leaf compression fossils to document the occurrence of stratified forests with a canopy dominated by flowering plants.
The team also reanalyzed vein density data from the literature from the Early Cretaceous (132.5 million years ago) to the Paleocene (58 million years ago) to determine
Vein density values similar to present ones appeared about 58 million years ago indicating that the emergence of flowering plants in the canopy occurred by the Paleocene.
The above story is provided based on materials by Geological Society of America. Note: Materials may be edited for content and length.
There are basic laws of biophysics that we cannot evade said lead researcher Bojana Bajzelj from the University of Cambridge's Department of Engineering who authored the study with colleagues from Cambridge's departments of Geography and Plant sciences as well as the University of Aberdeen's Institute of Biological
and hydrology the researcher uses light detecting and ranging commonly called LIDAR. The laser mapping technique gathers remote sensing data via an airplane.
Co-authors include Adam Dale Dr. Rob Dunn and Dr. Steve Frank of NC State and Dr. Adam Terando of the U s. Geological Survey and NC State.
For more information about NASA's Earth science activities in 2014 visit: http://www. nasa. gov/earthrightnowstory Source:
We look at the weather forecast every day to tell us how to prepare for tomorrow and that is because we can predict the weather with a large degree of confidence.
and storm flow from forest watersheds in the southern Appalachians according to a new study by U s. Forest Service scientists at the Coweeta Hydrologic Laboratory (Coweeta) located in Otto North carolina.
Geographic factors and technologies introduced by humans played a big role and influenced societies'options for development as well as their particular ways of dealing with drought says Riehl.
#Ravens rule Idahos artificial roostsa new study by the Wildlife Conservation Society (WCS) U s. Geological Survey (USGS) and Idaho State university (ISU) explored how habitat alterations
or U2u research project according to state climatologist and South dakota State university associate professor Dennis Todey. The project is funded through the Agriculture and Foods Research Initiative.
Teams of agronomists sociologists climatologists and environmental and soil scientists are examining all aspects of the corn production system.
Big fires today are not outside the range of historical variation in size said Jon Keeley an ecologist based in Three Rivers Cal. with the U s. Geological Survey's Western Ecological Research center and a Fellow of the Ecological Society.
The ranches'physical geography including open spaces and the proximity of wooded areas in which the cats can hide
but this species belonging to such a unique endemic island lineage is more special than that said Dr. Art Medeiros biologist with the U s. Geological Survey on Maui.
and food availability challenges said Judith Carney a professor of geography at the Institute of the Environment and Sustainability at the University of California Los angeles and author of Black Rice.
The above story is provided based on materials by United states Geological Survey. Note: Materials may be edited for content and length.
Measurements of three of these parameters came from the Princeton university Global Meteorological Forcing Dataset (PGF) previously developed by two of the study's authors Research Scholar Justin Sheffield and Eric F. Wood the Susan Dod
He incorporated observations from African weather stations to improve the accuracy of the data. To do this he used statistical techniques based on the principle that areas close to one another are likely to have similar weather.
and computer models researchers learned that ozone trapped different amounts of heat in Earth's atmosphere depending on its geographic location.
For more information about NASA's Earth science activities in 2014 visit: http://www. nasa. gov/earthrightnowstory Source:
The model takes into account not only the number of species throughout an area--the standard measure of biodiversity--but also the variation among species and their geographic rarity or endemism.
They only use about 70 percent of the optimal irrigation amounts explains Petra DÃ ll from the Institute of Physical geography at the Goethe University.
and Bonn Germany climatologists hydrologists geographers rangeland ecologists and ethnologists spent 12 years investigating the consequences of climate
Archaeologists ethnologists geographers historians and orientalists at the Universities of Halle and Leipzig Germany collaborated with colleagues from other institutes on this project for more than ten years
Even though quite a lot is known about the geographical and genetic diversity of honey bees knowledge of how honey bees adapt to the local environment has been limited until now.
but the news isn't all bad according to Dr. Srinivasulu Ale Agrilife Research geospatial hydrology assistant professor in Vernon Texas. Long-term (1930-2010) trends in groundwater levels in Texas:
Previous hydrologic studies on Texas groundwater levels were conducted mostly on an aquifer-specific basis and lacked the statewide panoramic view Ale
and surface-water use patterns soil characteristics geology and land cover types to better understand the water-level changes in Texas. For instance the South Plains
In addition to population growth in GMA 8 the high clay content in soils coupled with shale/claystone type geology
Due to their very generic nature techniques used in this study can also be applied to other areas with similar eco-hydrologic issues to identify regions that warrant future management actions.
so we may have our lowest wheat harvest on record said Mary Knapp service climatologist in the university's agronomy department.
and is part of an ongoing cooperative study with the Chinese Academy of Geological Sciences. It was classified previously as a coelurosaurian theropod dinosaur from
One of the warmest periods was the early Eocene epoch 50 to 53 million years ago.
Within Canada the only other fossil localities yielding mammals of similar age are from the Arctic so these fossils from British columbia help fill a significant geographic gap said Dr. Natalia Rybczynski of the Canadian Museum of Nature
The early Eocene is a time in the geological past that helps us understand how present day Canada came to have the temperate plants
The study indicates the Eocene Arctic sand tiger shark a member of the lamniform group of sharks that includes today's great white thresher
In contrast modern sand tiger sharks living today in the Atlantic ocean are very intolerant of low salinity requiring three times the saltiness of the Eocene sharks
The ancient sand tiger sharks that lived in the Arctic during the Eocene were very different than sand tiger sharks living in the Atlantic ocean today.
which is heating up at about twice the rate of the rest of the planet due to increasing greenhouse gases said CU-Boulder geological sciences Associate professor Jaelyn Eberle a study co-author.
A paper on the subject was published online June 30 in the journal Geology. Other co-authors include David Bell from the University of Wyoming Dewayne Fox from Delaware State university
The new findings on Arctic ocean salinity conditions in the Eocene were calculated in part by comparing ratios of oxygen isotopes locked in ancient shark teeth found in sediments on Banks Island in the Arctic circle
The Eocene epoch which ran from about 56 to 34 million years ago was marked by wild temperature fluctuations including intense greenhouse periods
and plants that were living in the Eocene Arctic greenhouse period said Eberle. To finally get some data on the Eocene marine environment using these shark teeth will help us to begin filling in the gaps.
Eberle said the Eocene Arctic ocean was isolated largely from the global oceans. Increased freshwater runoff from the land due to an intensified hydrologic cycle and a humid Arctic would have turned it more brackish pretty quickly she said.
The salinity gradient across the Eocene Arctic ocean that provided habitat for the ancient sand tiger sharks also was found to be much larger than the salinity gradient tolerated by modern sand tiger sharks living in the Atlantic ocean said Eberle.
The Eocene lamniform group of sharks had a much broader environmental window than lamniform sharks do today.
Eberle and Kim said the early-middle Eocene greenhouse period from 53 to 38 million years ago is used as a deep-time analog by climate scientists for
what could happen On earth if CO2 and other greenhouse gases in Earth's atmosphere continue to rise and
what a runaway greenhouse effect potentially could look like. Through an analysis of fossil sand tiger shark teeth from the western Arctic ocean this study offers new evidence for a less salty Arctic ocean during an ancient'greenhouse period'says Yusheng Chris Liu program
director in the NSF's Division of Earth sciences which co-funded the research with NSF's Division of Polar Programs.
And because of the country's climate and geography irrigation is now widespread burdening rivers and groundwater supplies.
and Japan--combined a hydrological model with domestic and international trade simulations to determine the efficiency of China's food trade in terms of water use as well as the role of foreign trade in this virtual water-trade system.
The researchers examined population data of grassland species in the 48 contiguous United states from the U s. Geological Survey North american Breeding Bird Survey.
and connects large landscapes that have high topographic and ecological diversity. Such a strategy will provide a range of options for animal movements as conditions change.
Data from local weather stations indicate that the average temperature in the Munich region has risen by 1. 5â°C over the past century.
The beech in Central europe is a relic of the warmer temperatures that prevailed during the Tertiary period;
Timeframes are identified through radiocarbon dating of freshwater snail shells and other organic soil matter. Thin microscopic sections of dirt samples show organization of soil grains revealing
He argues that geoarchaeology--a relatively new science that combines aspects of geology and archaeology--offers the potential to make dramatic contributions to our understanding of how climate change
Swedish children most Mediterraneaninterestingly the prevalence of high adherence to a Mediterranean-like diet was found to be independent of the geographical distribution with the Swedish children scoring the highest (followed by the Italians)
and related it to the geographic distribution. It showed why we could not find Arion lusitanicus in its alleged homeland.
and spend more time guarding their goods. This is according to work performed by researchers from Trinity college Dublin's School of Geography who say that communities near the edge of tropical forests are experiencing a lack of'dietary diversity
and Phd student in Geography at Trinity who conducted the interview-based study with the help of the Great apes Trust and local conservation workers.
because they are there here we have a throwback to the Pleistocene; it is still here
Rapid population growth and expansion of agriculture has fueled deforestation of more than 80 percent of the original forest cover according to doctoral student Francis Dwomoh of the Geographic Information science Center of Excellence at South dakota State university.
The Ghana native who began his doctoral work in 2012 is the 10th Geographic Information science Center of Excellence doctoral student to receive this award.
This location and the cases of extreme meteorological phenomena are creating an environment in which hybrid trees could be a valuable commercial resource for the future owing to their capacity to withstand water stress and adverse climate conditions.
and spatial accuracy said Jack Mustard professor of geological sciences at Brown and another of the study's authors.
Though it is thought to have originated in Mexico the common bean was domesticated separately at two different geographic locations in Mesoamerica
what the Cretaceous forests looked like with and without fire disturbance says Hans Larsson Canada Research Chair in Macroevolution at Mcgill University.
Researchers used a portable weather station on a long pole to measure what the koalas were experiencing in the places they chose to sit compared to other places available to them.
Dominating hypotheses point out Pleistocene glaciations--which took place between 2. 5 years ago and 20000 years ago--or Tertiary tectonic geological reorganizations Tertiary
and has been shaped by complex interactions between ancient geological events and more recent evolutionary processes whereas Pleistocene climate changes had a minor influence in generating present-day diversity
even if they influenced its distribution. Most studies aimed at defining and studying high biodiversity areas focus on organisms with high-dispersal ability.
Moreover most sampled localities harbour high levels of genetic diversity with lineages sharing common ancestors that predate the Pleistocene (more than 2. 5 million years ago.
We found that climate engineering doesn't offer a perfect option said Daniela Cusack the study's lead author and an assistant professor of geography in UCLA's College of Letters and Science.
and soil ecology teamed up with experts in oceanography political science sociology economics and ethics. Working under the auspices of the National Science Foundation the team spent two years evaluating more than 100 studies that addressed the various implications of climate engineering and their anticipated effects on greenhouse gases.
and in the ocean storing carbon dioxide in a liquefied form in underground geological formations and wells increasing Earth's cloud cover and solar reflection.
which oil and coal extraction companies then pump into underground geological formations and wells and cap;
Geography and the existence of so-called food deserts (neighborhoods or regions with limited access to affordable healthy food) appear to have little bearing on the obesity trend in general
or geography he said. And it's true that if you look at the national data for any one point in time it's not hard to figure out for example that the people with the lowest education tend to have the highest obesity rate.
which also involves students in civil engineering plant pathology agronomy geography and park management and conservation. The goal of the project is to demonstrate our potential at Kansas State university to initiate a successful closed-loop recycling
when the Antarctic Geological Drilling Program (ANDRILL) sent a remotely operated submersible vehicle into holes that had been drilled into the ice.
may have led to extinctionnewly analyzed tooth samples from the great apes of the Miocene indicate that the same dietary specialization that allowed the apes to move from Africa to Eurasia may have led to their extinction according to results published May 21 2014 in the open access journal
Apes expanded into Eurasia from Africa during the Miocene (14 to 7 million years ago)
and lower molars belonging to apes from five extinct taxa found in Spain from the mid-to late-Miocene (which overall comprise a time span between 12. 3â#2. 2 and 9. 7 Ma).
and Turkey suggested that the great ape's diet evolved from hard-shelled fruits and seeds to leaves but these findings only contained samples from the early-Middle and Late Miocene while lack data from the epoch of highest diversity
and seeds at the beginning of the movement of great apes to Eurasia soft and mixed fruit-eating coexisted with hard-object feeding in the Late Miocene
The researchers paired NASA and National Oceanic and Atmospheric administration satellite records with data from a network of University of California weather stations covering 32 consecutive winters.
Their records are being assembled to compare lakes of various sizes located in different geographic or social settings and climates Kratz says.
or remove it says UW-Madison geography Professor Jack Williams director of the Nelson Center for Climatic Research.
We're pollen whisperers says Simon Goring a postdoctoral fellow in geography who notes that pollen records can extend back tens of thousands of years
This has long been done very successfully with weather forecasting and climate models and it's now being done with terrestrial ecosystem models.
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