Earth surface longwave radiation (SLR), including downward (DLR), upward (ULR), and net (NLR), significantly impacts the budget global climate evolution. However, spatiotemporal variation in SLR remains poorly understood. In this study, three satellite products (GLASS-MODIS V40, GLASS-AVHRR, CERES-SYN) reanalysis datasets (ERA5, MERRA-2, GLDAS) were validated using ground measurements from 288 ...

The concentration changes of aerosols have attracted wide-ranging attention during the COVID-19 lockdown (CLD) period, but studies involving aerosol optical properties (AOPs) are relatively insufficient, mainly AOD (fine-mode (AODf) and coarse-mode (AODc)), absorption depth (AAOD), extinction coefficient (AEC). Here, remote-sensing observations, Modern-Era Retrospective analysis for Research Ap...

Abstract. Gravity waves play a significant role in driving the semiannual oscillation (SAO) of zonal wind tropics. However, detailed knowledge this forcing is missing, and direct estimates from global observations gravity are sparse. For period 2002–2018, we investigate SAO four different reanalyses: ERA-Interim, JRA-55, ERA-5, MERRA-2. Comparison with SPARC climatology quasi-geostrophic winds ...

Based on the fact that wind speed tends to increase as we go from onshore offshore, aim of this work is perform an analysis a Romanian coastal sector located near Danube Delta. Over course 20 years (2001–2020), in situ observations and reanalysis data (ERA5 MERRA-2) local conditions were evaluated meteorological renewable point view. This evaluation includes two sites (Galati Tulcea), one site ...

Abstract Supraglacial lakes and rivers dominate the storage transport of meltwater on southwest Greenland Ice Sheet (GrIS) surface. Despite functioning as interconnected hydrologic networks, supraglacial are commonly studied independent features, resulting in an incomplete understanding their collective impact routing. We use Landsat 8 satellite imagery to assess seasonal evolution GrIS during ...

This study assesses and evaluates the 40-year (1980–2019) Modern-Era Retrospective Analysis for Research Applications v.2 (MERRA-2) surface solar radiation (SSR) as well its interdecadal changes (Δ(SSR)) against high quality reference measurements from 1397 Global Energy Balance Archive (GEBA) 73 Baseline Surface Radiation Network (BSRN) stations. The is innovative since MERRA-2 has never been ...

Abstract In the late twentieth century, global mean surface air temperature especially on land is continuously warming. Our analyses show that of dust increased since 1980, using Modern-Era Retrospective Analysis version 2 for Research and Applications (MERRA-2) reanalysis data. This variation mainly contributed by increase outside core areas (i.e. high mass concentration region). The causes to...