Forum

If you study the long-term change of aerosols, you may want to consider the monthly aerosol collection tavgM_2d_aer_Nx (M2TMNXAER). Adding to Allie's reply, which is good, the MERRA-2 FAQ may provide you additional information (https://gmao.gsfc.nasa.gov/gmao-products/merra-2/faq_merra-2/). You can...

Thank you for your interest in MERRA-2 aerosol data! You are correct in your understanding of the fields. SSSMASS, DUSMASS, BCSMASS, and OCSMASS include all five size bins for sea salt and dust, and both hydrophobic and hydrophilic for black and organic carbon. SSSMASS25 and DUSMASS25 only contain ...

Hi there, Recently I am using the M2T1NXAER (tavg1_2d_aer_Nx) collection to study long-term variations of aerosols. I have a few questions regarding the Surface Mass Concentration variables in the product. For the variables SSSMASS, DUSMASS, BCSMASS, and OCSMASS — do these represent the total mass c...

Thank you very much for your promt reply!

I am currently conducting an analysis using the CERES EBAF TOA Shortwave Radiation Flux data. To complement my analysis, I would like to incorporate cloud information. I have noticed that the cloud data provided within the EBAF product is characterized as “daynight” . My primary question is whether ...

We notice that the spatial resolution of CER_GEO_ED4_HIM08 product is

The observations are at 4 km resolution (at nadir) and are sub-sampled to 8 km.

We want to know why do you sub-sample the data? Why is it different at different hemisphere?

The documentation of CERES_SYN1deg_Ed4A mentioned that The SYN1deg Ed4A should not be used to infer longterm trends of clouds or fluxes and are not of climate quality. Users should be aware that whenever a GEO domain is crossed, whether in time or space, a slight change in mean cloud property values...

The SME response is as follows: The problem you are seeing with overly large effective radius (both water and ice) is an issue with the software that was used to process the data. The MET10 V01.2 available in 2023 and 2024 do not have this issue. We are sorry for any inconvenience this issue is cau...

We found that the effective radius (liquid phase) in the CERES GEO products, especially datasets of Meteosat-10 (SatCORPS CERES GEO Edition 4 Meteosat-10 Northern/Southern Hemisphere Version 1.0) are unusually high compared to other Meteosats. We would like to know whether this discrepancy is due to...

Sorry for bothering you, but there's no response to my latest post. We notice that the SatCORPS geostationary products are generated as instantaneous data at hourly intervals, whereas the original temporal resolution of geostationary satellites is higher. Why do you choose the hourly interval? Is th...