Sentences with phrase «of precipitation measurements»

Numerical modeling of precipitation measurements was conducted using a supercomputer nicknamed Cheyenne at the NCAR - Wyoming Supercomputing Center.

Not exact matches

At the same time as the aircraft were taking measurements, Creamean and her colleagues also took samples of the precipitation on the ground and analyzed them to see whether that dust was in the rain or snow landing in the mountains.

«So we were making these measurements while people were on the ground collecting the precipitation and getting radar data,» and together, they were able to paint a better picture of how what happened in the cloud influenced the rain or snow falling on the ground.

«Precipitation depends on ice; it's very sensitive to ice in a cloud, so figuring out what forms ice [in clouds] is sort of the holy grail of the measurements we've been trying to do, and it's a very chemically selective process,» Prather said at the ACS meeting yesterday afternoon.

Using U.S. Weather Service data on precipitation, radiosonde measurements of CAPE and lightning - strike counts from the National Lightning Detection Network at the University of Albany, State University of New York (UAlbany), they concluded that 77 percent of the variations in lightning strikes could be predicted from knowing just these two parameters.

Diving deeper into the complex puzzle of mass strandings, the team decided to expand their analysis and include additional oceanographic and atmospheric data sets from NASA's Earth science missions, including Terra, the Sea - viewing Wide Field - of - view Sensor — or SeaWIFS, for short — and Global Precipitation Measurement, as well as the National Oceanic and Atmospheric Administration's Geostationary Operational Environmental Satellite, or GOES, mission.

The data comes from NASA and the Japan Aerospace Exploration Agency's Global Precipitation Measurement mission (GPM), a constellation of international and domestic satellites that estimate rainfall and snowfall every three hours.

The predictions matched actual rainfall measurements during the 75 - year period, both in the magnitude (amount) and the trend (increase or decrease) of precipitation.

Nevertheless, Steven Running, chair of a NASA earth science advisory committee meeting, was pleased both with the funding request, as well as with a year that had seen the launch of three major missions: the Global Precipitation Measurement mission, joint with the Japanese Space Agency; the Orbiting Carbon Observatory - 2 mission; and the Soil Moisture Active Passive mission, which just launched on 31 January.

Steven Running, chair of a NASA earth science advisory committee meeting, was pleased both with the request, as well as with a year that had seen the launch of three major missions: the Global Precipitation Measurement mission, joint with the Japanese Space Agency; the Orbiting Carbon Observatory - 2 mission; and the Soil Moisture Active Passive mission, which just launched on 31 January.

To do so, Ichoku and his colleagues used satellite records from 2001 to 2014 — including data from NASA's Moderate Resolution Imaging Spectroradiometer and the Tropical Rainfall Measurement Mission — to analyze the impact of fires on various water cycle indicators, namely soil moisture, precipitation, evapotranspiration and vegetation greenness.

«The proxy records used in this study appear to contradict other studies that have used direct observations of precipitation from rain gauges... All else being equal, I would trust direct rainfall measurements over proxy records.»

The ARM data will provide more detailed measurements of both aerosols and clouds to assist the research team in quantifying the impacts of aerosols on precipitation under a variety of atmospheric and pollution conditions.

A joint session dedicated to DOE ARM measurements: Observations of Aerosol / Trace Gases, Clouds, Precipitation, and Radiation from DOE Atmospheric Radiation Measurement (ARM) Climate Research Facility Part 1, Tuesday, January 24, 8:30 — 10:00 am, 4C - 4, led by Jian Wang, Brookhaven National Laboratory, Jim Mather and Jiwen Fan, both from Pacific Northwest National Laboratory

Observations of Aerosol / Trace Gases, Clouds, Precipitation, and Radiation from DOE Atmospheric Radiation Measurement (ARM) Climate Research Facility (Joint with the 19th Conference on Atmospheric Chemistry; the 9th Symposium on Aerosol - Cloud - Climate interactions to host)

Observations of Aerosol / Trace Gases, Clouds, Precipitation, and Radiation from DOE Atmospheric Radiation Measurement (ARM) Climate Research Facility

A new paper explores model cloud and precipitation transitions in a highly variable meteorological environment observed during the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Midlatitude Continental Convective Clouds Experiment (MC3E) field campaign.

While it might indicate warming, or lack of precipitation, it does not measure incorrect temperature measurements in the USA.

The model variables that are evaluated against all sorts of observations and measurements range from solar radiation and precipitation rates, air and sea surface temperatures, cloud properties and distributions, winds, river runoff, ocean currents, ice cover, albedos, even the maximum soil depth reached by plant roots (seriously!).

This apparent inconsistency says little about the overall trend in the heaviest precipitation events, but a lot about the weaknesses of single - point measurements for detecting trends in extreme precipitation.

They include soaring temperatures, declining late - season snowpack, northward - shifted winter storm tracks, increasing precipitation intensity, the worst drought since measurements began, steep declines in Colorado River reservoir storage, widespread vegetation mortality, and sharp increases in the frequency of large wildfires.

Tropical land - surface precipitation measurements indicate that precipitation likely has increased by about 0.2 to 0.3 % / decade over the 20th century, but increases are not evident over the past few decades and the amount of tropical land (versus ocean) area for the latitudes 10 ° N to 10 ° S is relatively small.

Nonetheless, direct measurements of precipitation and model reanalyses of inferred precipitation indicate that rainfall has also increased over large parts of the tropical oceans.

Looking ahead, climate experts said an important part of any rebuilding of Afghanistan would be prompt re-establishment of basic, regular measurements of precipitation and other weather conditions.

This study investigates the variability of convective and stratiform rainfall from 8 yr (1998â $ «2005) of Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) and TRMM Microwave Imager (TMI) measurements, focusing on seasonal diurnal variability.

Moreover, because of the effects of wind speed, evaporation, and precipitation intensity, different types of rain gauge, and observation techniques induce different errors in precipitation measurements.

The DKRZ long - term archive WDCC (World Data Center for Climate) has assigned its 1000th DataCite DOI to the experiment OceanRAIN - M of the project «Ocean Rainfall And Ice - phase precipitation measurement Network».

We also acknowledge our NASA partners at the Global Precipitation Measurement and SPoRT programs, with whom we have worked jointly on various aspects of snowfall rate retrievals for many years.

Meanwhile, satellite measurements provide precipitation information that is more spatially homogeneous and temporally complete for vast areas of the globe.

First, better calibrations of satellite data and better methods for the optimal combination of earth measurements, satellite estimates, and model outputs may provide a better understanding of precipitation.

Gauge observations provide relatively accurate and trusted measurements of precipitation with long term records.

However, these measurements contain non-negligible random errors and biases owing to the indirect nature of the relationship between the observations and actual precipitation, inadequate sampling, and deficiencies in the algorithms.

The principal scientific objective is to make global SSS measurements over the ice - free oceans with 150 - km spatial resolution, and to achieve a measurement error less than 0.2 (PSS - 78 [practical salinity scale of 1978]-RRB- on a 30 - day time scale, taking into account all sensors and geophysical random errors and biases.Salinity is indeed a key indicator of the strength of the hydrologic cycle because it tracks the differences created by varying evaporation and precipitation, runoff, and ice processes.

This allowed the development and validation of more realistic simulations that replicated the aircraft measurements and thus quantified more reliably the entities that can not be obtained directly by the aircraft measurements to improve understanding and modeling of aerosol - cloud - precipitation interactions.

c, Measurements of July to September air temperature and annual precipitation changes at each site between 2003 and 2002.

The Palmer Drought Severity Index, which is a measure of soil moisture using precipitation measurements and rough estimates of changes in evaporation, has shown that from 1900 to 2002, the Sahel region of Africa has been experiencing harsher drought conditions.

To measure rainfall over land, the scientists took advantage of a new NASA - based international satellite mission, dubbed Global Precipitation Measurement.

To test the accuracy of these modeled data, we compared values from the Verde ponderosa pine PRISM modeled data to measurements of total winter precipitation recorded during the original Beaver Creek experiments [31].

The map below shows satellite - based measurements of rain, snow, and other wintry precipitation as it has accumulated over California, Nevada, Utah, and Arizona this year.

The data come from the Integrated Multi-Satellite Retrievals for GPM (IMERG), a product of the Global Precipitation Measurement mission.

It actually covers climate modeling, solar and atmospheric physics, temperature measurement, phenomena of clouds, precipitation, sea levels, and glaciology, as related to climate change.

They are the JRA - 55 reanalysis and combined products of the Global Precipitation Climatology Centre (GPCC) based on measurements from rain gauges.

[1] Measurements from several different satellite instruments are used to estimate effects of energetic particle precipitation (EPP) on NOx (NO + NO2) in the Southern Hemisphere stratosphere from 1992 to 2005.

Needed measurements include not only the conventional climatic variables (temperature and precipitation), but also the time - varying, three - dimensional spatial fields of ozone, water vapor, clouds, and aerosols, all of which have the potential to cause surface and lower to mid-tropospheric temperatures to change relative to one another.

To evaluate the reliability of radio occultation measurements and to study precipitation processes in more detail, coordinated EISCAT measurements would be useful.

The Eastern North Atlantic instrument field covers a variety of meteorological measurements focusing on atmospheric and boundary properties, surface and radiative fluxes, and precipitation.

Uses a time series of hydrographic and stable oxygen isotope (δ18O) measurements collected at a near - coastal site in Marguerite Bay to quantify the prevalence of meteoric freshwater (glacial melt plus precipitation) separately from sea ice melt

[4] Thanks to a strong El Niño that brought near average precipitation to the northern California, the statewide April 1 snowpack measurement in 2016 showed state water resources at 87 percent of the long - term average; however, the snowpack was not sufficient to undo water deficits caused by years of drought.

Using U.S. Weather Service data on precipitation, radiosonde measurements of CAPE and lightning - strike counts from the National Lightning Detection Network at the University of Albany, State University of New York (UAlbany), they concluded that 77 percent of the variations in lightning strikes could be predicted from knowing just these two parameters.

We can do a hundred different measurements on a single little slab of ice and from that we can tell all sorts of things; Temperature, precipitation, storm patterns, where the storm came from, industrial pollutants, forest fires, volcanoes, on and on and on.