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As the variable name states, this is a concentration, not a flux or tendency. If you need the total time rate of change you can take the difference of the concentration at two points in time, then divide by the amount of time between the two points.

I have data from merra 2 for sea salt mass concentration, the unit is kg/m3 , i need it in kg/m2 for my application. I like value for length scale which needs to multipled to it. How to find a length scale for specific location. Hi, I am assuming that you are using a variable SSSMASS25. The surface...

If you read that carefully, you'll see that 60m is an approximate value. This is because the model uses a terrain following coordinate so that the thickness of the layers is a function of pressure. The variable HLML varies in latitude, longitude and time (space and time). This is why we provide the ...

Well, I'm not a chemistry expert either, but I learned unit conversions quite some time ago. Kg to mg, assuming that the constituent is the same in the conversion, then should just be a multiple of 10. I don't know how many powers of ten to tell you because its not clear if you want, milligram or mi...

Take a look at this paper, it has a complete total energy budget discussion, with equations and also variable names in the appendix. The paper is MERRA, but most of that still holds for what is included in MERRA-2.

Hi, and thanks for your interest in MERRA-2 If you are not familiar with reanalyses methodology, please refer to our documentation and papers here: https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/ In particular, while observations are used to guide the system, the reason we have data every where ...

please email merra-questions@lists.nasa.gov and I can reply with the table of Ak/Bk coefficients.

Hi, Just to be sure you have the appropriate information, MERRA-2 Documentation is at: https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/. Also, be aware that the GMAO maintains a help email for science and technical questions regarding the MERRA-2 data. merra-questions@lists.nasa.gov 1 The pressur...