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by takaaki09
Sun Sep 24, 2023 4:54 am America/New_York
Forum: Home
Question: [M2I6NPANA] Missing values in air temperature
Replies: 2

[M2I6NPANA] Missing values in air temperature

I am using the M2I6NPANA product to obtain air temperature data for different pressure levels in South Asian countries. I have seen corresponding values for most regions, but have encountered some NA/NaN values in some places. I tried to see if this was documented in the FAQs and other notes, but I ...
by takaaki09
Wed May 31, 2023 4:22 am America/New_York
Forum: Home
Question: Magnitude and Unit of PM2.5, MERRA-2: Conversion Necessary?
Replies: 10

Re: Magnitude and Unit of PM2.5, MERRA-2: Conversion Necessary?

Thank you for responding quickly. As I do not have any scientists/experts in this field around, I just would like to confirm the following two things: (1) Is the conversion for kg m^{-3} to μg m^{-3}, multiplying kg m^{-3} by 10^9, generally applicable and frequently used method in practice? (2) Is ...
by takaaki09
Sun May 28, 2023 9:07 am America/New_York
Forum: Home
Question: Magnitude and Unit of PM2.5, MERRA-2: Conversion Necessary?
Replies: 10

Magnitude and Unit of PM2.5, MERRA-2: Conversion Necessary?

I am constructing PM2.5 using the MERRA-2 dataset following the equation (PM2.5 = DUSMASS25 + OCSMASS+ BCSMASS + SSSMASS25 + SO4SMASS* (132.14/96.06)) provided in FAQ. Dataset: https://disc.gsfc.nasa.gov/datasets/M2T1NXAER_5.12.4/summary FAQ: https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/FAQ/#Q4 I k...