نتایج جستجو برای: merra 2

تعداد نتایج: 2525355  

Journal: :Earth System Science Data 2022

Abstract. The study presents a climatology of aerosol composition concentrations obtained by recently developed algorithm approach, namely the Generalized Retrieval Atmosphere and Surface Properties (GRASP)/Component. It is applied to whole archive observations from POLarization Directionality Earth's Reflectances (POLDER-3). conceptual specifics GRASP/Component approach in direct retrieval spe...

Journal: :Geoscientific Model Development 2021

Abstract. This paper describes version 2.0 of the Global Change and Air Pollution (GCAP 2.0) model framework, a one-way offline coupling between E2.1 NASA Goddard Institute for Space Studies (GISS) general circulation (GCM) GEOS-Chem global 3-D chemical-transport (CTM). Meteorology driving has been archived from contributions to phase 6 Coupled Model Intercomparison Project (CMIP6) pre-industri...

Journal: :Tarim Bilimleri Dergisi-journal of Agricultural Sciences 2021

Evapotranspiration (ET), which is a combination of the words evaporation and transpiration, expressed as sum water due to consumption in plants. In this study, NASA Drought Early Warning Systems Network Land Data Assimilation System model (FLDAS NOAH) was used determine evapotranspiration data for 2018-2019 years (October 2017-September 2019) on Turkey. addition, Global (GLDAS temperature data....

2014
P. W. Keys E. A. Barnes L. J. Gordon

Recent research has revealed that upwind land-use changes can significantly influence downwind precipitation. The precipitationshed (the upwind ocean and land surface that contributes evaporation to a specific location’s precipitation) may provide a boundary for coordination and governance of these upwind–downwind water linkages. We aim to quantify the variability of the precipitationshed bound...

2014
J. D. Watts John S. Kimball F. J. W. Parmentier T. Sachs J. Rinne M. Aurela

The northern terrestrial net ecosystem carbon bal­ ance (NECB) is contingent on inpnts from vegetation gross primary prodnctivity (GPP) to offset the ecosystem respi­ ration (Reco) of carbon dioxide (CO2 ) and methane (CH4 ) emissions, bnt an effective framework to monitor the re­ gional Arctic NECB is lacking. We modified a terrestrial car­ bon llnx (TCF) model developed for satellite remote s...

2014
K. Sindelarova C. Granier

The Model of Emissions of Gases and Aerosols from Nature (MEGANv2.1) together with the ModernEra Retrospective Analysis for Research and Applications (MERRA) meteorological fields were used to create a global emission data set of biogenic volatile organic compounds (BVOC) available on a monthly basis for the time period of 1980–2010. This data set, developed under the Monitoring Atmospheric Com...

Journal: :Geophysical Research Letters 2021

Atmospheric rivers (ARs) are the primary mechanism for mid-latitude water vapor transport, and identified by a key variable, integrated transport (IVT). The ability of atmospheric reanalyses in providing ground-truth dataset IVT field is assessed comparing ERA5, MERRA-2, JRA-55 data against large sample (>1,700) dropsonde profiles deployed around ARs. Bias error increase with magnitude, althoug...

Journal: :npj climate and atmospheric science 2022

Abstract In this paper, we examine the aerosol effects on vertical structure of precipitation in East China by matching GPM DPR (Global Precipitation Measurement Dual-frequency Radar) and MERRA-2 (Modern-Era Retrospective analysis for Research Applications, Versions2) datasets. It was found that increase will obviously frequency when AOD (Aerosol Optical Depth) ≤ 0.5, but excessive suppresses &...

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