117.1 MERRA-2_2000_2020
metadata_field | |
---|---|
shortname | MERRA-2_2000_2020 |
title | MERRA-2_2000_2020 |
creator | NASA Global Modeling and Assimilation Office |
contact_email | car.data@sydney.edu.au |
abstract |
The Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) provides data beginning in 1980 and runs a few weeks behind real time. Alongside the meteorological data assimilation using a modern satellite database, MERRA-2 includes an interactive analysis of aerosols that feed back into the circulation, uses NASA’s observations of stratospheric ozone and temperature (when available), and takes steps towards representing cryogenic processes. The initial published version was missing values for September 2020, so the corresponding data derived is also not present. This data was downloaded using the R package MERRAbin, and in particular the R function getMERRADataBox Updated 2022-08-10: Updated version (designated r401) of September 2020 data downloaded and PM2.5 derived. Various other empty or corrupted data files replaced. Updated 2022-11-11: Derived daily aggregate data (mean of AEST 00:00 to 23:00 day) for each MERRA-2 variable, and calculated daily PM2.5 off daily means. Stored in data_derived_daily https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/ The following variables from tavg1_2d_aer_Nx (M2T1NXAER): Aerosol Diagnostics (https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf) were downloaded: And stored in \data_provided
daily PM2.5 was estimated using the following equation: (DUSMASS25 + SSSMASS25 + BCSMASS + 1.4OCSMASS + 1.375SO4SMASS)*1e9 ref: https://www.sciencedirect.com/science/article/pii/S1352231015305136?via%3Dihub And stored in \data_derived_daily/pm25 |
additional_metadata | /home/public_share_data/ResearchData_CAR/Environment_General/NASA_GMAO/MERRA-2_2000_2020 |
alternate_identifier | https://cloud.car-dat.org/index.php/apps/files/?dir=/Environment_General/NASA_GMAO/MERRA-2_2000_2020 |
associated_party | |
access_rules | Public |
Recommended Citation | Global Modeling and Assimilation Office (GMAO) (2015): MERRA-2 tavg1_2d_aer_Nx: 2d,1-Hourly,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics V5.12.4, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC). Data downloaded from CARDAT. (Dataset). https://cloud.car-dat.org/index.php/apps/files/?dir=/Environment_General/NASA_GMAO/MERRA-2_2000_2020 |
licence_code | other |
accessibility | CAR |