Sentences with phrase «in hydrologic»

I have over 25 years of professional experience in Hydrologic / Hydraulic modeling and analyses of watersheds, bridges / culverts with scour analyses, stormwater management, floodplain mapping, site and roadway drainage design, erosion and sediment control along with excellent report preparation skills including eye - catching Excel worksheets and graphs as well as drawings.

I have engineering experience in hydrologic / hydraulic modeling for roadway drainage infrastructure; which my structural engineering and inspection background for bridge replacements accentuates.

There are many variables in hydrologic and climatic models which can only be estimated through calibration against a valid, and long period, data set.

Moreover, snowmelt runoff is a key component in the hydrologic cycle and the primary source of fresh

There is now a pressing need for decision - makers to better understand the ongoing changes in hydrologic extremes in order to make preparations for changing conditions.

On Fri Aug 18 in a message to Eli at the google globalchange group I explained how NWS went about officially removing me from government service in July 2005, after I had served the public with NWS in hydrologic modeling and river prediction for more than 29 years.

NWS officially removed me from government service in a July 15, 2005 memorandum from the acting deputy director of NOAA's NWS Central Region office, after I had served the public with NWS in hydrologic modeling and river prediction for 29 years, 5 months.

Unger's cherry - picking of the data is similar to the cherry - picking employed in analyses of forests» role in the hydrologic cycle.

The group used field observations of the burned watershed, spatially explicit data on watershed characteristics, historic rainfall and runoff measurements, and accepted modeling techniques to estimate post-fire changes in hydrologic and sedimentary processes in the Mission Creek watershed.

The combination of precipitation deficits and high temperatures has resulted in hydrologic conditions in some areas that match if not exceed the severity of the 1950s drought (Figs. 3B and 4).

Latin name: Quercus lyrata These oak cores were collected in northeastern Arkansas to investigate a change in the hydrologic regime of a wildlife refuge beginning in the 1990s.

Gavin's is the fallacy that CO2 is the driver of climate, not albedo, not land use changes, not changes in hydrologic flows, not solar variability.

Hunter writes: Gavin's is the fallacy that CO2 is the driver of climate, not albedo, not land use changes, not changes in hydrologic flows, not solar variability.

However, even today its importance and its consequences are not widely understood or are ignored, its nature is regarded as difficult to understand, and its reproduction in hydrologic simulation is considered a hard task or not necessary.»

Substantial effort is also invested in ensuring that the theme's modelling capability evolves in concert with improvements in hydrologic science and technology.

Activity between 2019 and 2020 will focus on expanding the hydrologic projections and water temperature modelling into additional basins and completing an analysis of regional changes in hydrologic extremes.

«The Surfrider Foundation is renowned for our commitment to keeping America's oceans, waves and beaches clean, but we also understand the importance in maintaining clean, healthy inland waterways because of their key role in the hydrologic cycle,» said Matt McClain, Surfrider Foundation's Director of Marketing and Communications.

Many impacts settings are somewhat tuned to a certain resolution, such as the nested size categorizations of hydrologic basins down to watershed size, commonly used in hydrologic modeling.

Researchers at CIRES» National Snow and Ice Data Center [About NSIDC] investigate the dynamics of Antarctic ice shelves, new techniques for the remote sensing of snow and freeze / thaw cycle of soils, the role of snow in hydrologic modeling, linkages between changes in sea ice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen ground.

The role of wetlands in the climate system is twofold because of their important part in the hydrologic cycle and in the methane that they emit.

Even though these gains were substantially less than runoff gains during pluvials, additional runoff under drought conditions could help lessen the impact of predicted climate - driven losses in hydrologic connectivity important to native fish in the Salt and Verde watersheds [64].

Don't try to snip out just the warming in the hydrologic cycle and leave out the cooling event.

The material on atmospheric interactions and physics underlying the greenhouse effect, seemed appropriate for my poster development at that time, in relation to my duties at work in hydrologic forecasting and model development.

The issue with the Mauritsen and Stevens piece is that it tries to go well beyond a «what if» modeling experiment, and attempts to make contact with a lot of other issues related to historical climate change (the hiatus, changes in the hydrologic cycle, observed tropical lapse rate «hotspot» stuff, changes in the atmsopheric circulation, etc) by means of what the «iris» should look like in other climate signals.

This paper briefly reviews the current state of science regarding historical trends in hydrologic variables, including precipitation, runoff, tropospheric water vapor, soil moisture, glacier mass balance, evaporation, evapotranspiration, and growing season length.

A few things are unequivocal, perhaps (doubling from the present concentration of CO2 will take 140 years [give or take]; the idea that the changes in climate since 1880 have been in the aggregate beneficial; it takes more energy to vaporize a kg of water than to raise its temperature by 1K; ignoring the energy cost of water and latent heat transport [in the hydrologic cycle] leads to equilibrium calculations overestimating the climate sensitivity), but most are propositions that I think need more research, but can't be refuted on present evidence.

ignoring the energy cost of water and latent heat transport [in the hydrologic cycle] leads to equilibrium calculations overestimating the climate sensitivity)...

I worked with climate data in hydrologic model development and calibration at a NOAA National Weather Service (NWS) River Forecast Center (RFC) from 1976 - 2005.

«They're accurately capturing the spatial patterns in hydrologic changes, and they've got the basic physics right.

The team was able to demonstrate that the loss of species is related to changes in the hydrologic regime resulting from the conversion of forested areas to agricultural land.

Indeed, increased spring precipitation in recent years has apparently prevented what would otherwise be large snow - related declines in hydrologic yield (Pederson et al. 2011a).

Through another NSF grant, in its Hydrologic Sciences Program, Singer, Stella and ERI director Kelly Caylor, also a professor in UCSB's Bren School of Environmental Science & Management, will study riparian forests along a major European river.

«The [employment] opportunities are endless — it's almost a frontier mentality,» asserts Dara Entekhabi, water foundations professor in civil / environmental engineering at MIT, and member of the National Academy of Sciences committee on Opportunities in Hydrologic Sciences.

Not exact matches

the Big Bang theory (which postulates that, soon after the creation of matter and energy, an explosion began the expansion of the universe), to the hydrologic cycle, to the classification of animals and plants, to medical and hygienic statements in the Torah, to environmentalist statements, to psychological and sociological observations

They also used a physically based computer model of the hydrologic cycle, which takes daily weather observations and computes the snow accumulation, melting, and runoff to estimate the total snowpack in the western U.S.

But the new work suggests they can play a role in the water cycle of the Amazon Basin — which, in turn, has a profound effect on the planet's hydrologic cycle, researchers report in the Jan. 26 Science.

A shorter period covered by snow, more spring rain and faster snow melt can combine to release large amounts of runoff that have the potential to stress urban hydrologic systems and cause flooding in urban areas.»

Some of the findings in the report also directly contradict longstanding arguments by the drilling industry for why the fracking process is safe: that hydrologic pressure would naturally force fluids down, not up; that deep geologic layers provide a watertight barrier preventing the movement of chemicals towards the surface; and that the problems with the cement and steel barriers around gas wells aren't connected to fracking.

The scientists analyzed 76 years of data (1938 through 2013) collected from six unmanaged, reference watersheds at the SRS Coweeta Hydrologic Laboratory located in the southern Appalachian Mountains in North Carolina, to determine whether annual water yield from those watersheds has changed over time, and if so, to determine causes for significant changes.

The report also found that hydrologic pressure in the Pavillion area had pushed fluids from deeper geologic layers towards the surface.

In several other studies, including a number that examined flooding in the Clear Creek watershed, Blessing, Brody, Sebastian and SSPEED colleagues have shown that other approaches, like distributed hydrologic modeling and probabilistic flood plain mapping, can be far more predictive of flood damages and flood risIn several other studies, including a number that examined flooding in the Clear Creek watershed, Blessing, Brody, Sebastian and SSPEED colleagues have shown that other approaches, like distributed hydrologic modeling and probabilistic flood plain mapping, can be far more predictive of flood damages and flood risin the Clear Creek watershed, Blessing, Brody, Sebastian and SSPEED colleagues have shown that other approaches, like distributed hydrologic modeling and probabilistic flood plain mapping, can be far more predictive of flood damages and flood risk.

Keiluweit, assistant professor in UMass Amherst's School of Earth and Sustainability, says the team's next steps include quantifying the amount of anaerobic microsites in different soil ecosystems and assessing how carbon stabilization in them is affected by variables such as the soil hydrologic regime, which is expected to change dramatically due to climate change.

The team's findings, which appear in the journal Environmental Research Letters, provide insight into observed or projected regional hydrologic trends.

And the GPS data is about 50 percent more accurate than one hydrologic model used to estimate snowpack in the Sierra Nevada and roughly on par with another one, Argus said.

This study highlights the key role of vegetation in controlling future terrestrial hydrologic response and emphasizes that the continental carbon and water cycles are intimately coupled over land and must be studied as an interconnected system.

«Our finding that vegetation plays a key role future in terrestrial hydrologic response and water stress is of utmost importance to properly predict future dryness and water resources,» says Gentine, whose research focuses on the relationship between hydrology and atmospheric science, land / atmosphere interaction, and its impact on climate change.

Chapter C: Numerical Model of the Hydrologic Landscape and Groundwater Flow in California's Central Valley.

Bridget Scanlon discusses the use of global hydrologic models for studying changes in water storage worldwide.

Modeling changes in the observed harmonic frequencies indicates that the spectral characteristics of seismic data can provide important information about hydraulic fracture geometry and fluid pressure at depth, leading to important insights into subglacial hydrologic processes.

-- Output from the river system model is being used to identify likely imbalances in water supply and demand as compared to past and existing operations under known climate and hydrologic conditions.