Earthdata Forum

Hello,
I need to download data about this parameter "Evaporation Land", Abbreviation: EVLAND

via the API from this site https://power.larc.nasa.gov/

I use this command, it works but I receive zeros, "0.0", I have tried different points (different coordinates) and different dates I still receive zeros for all of them. Obviously thay can't be so.

https://power.larc.nasa.gov/api/temporal/daily/point?start=20200630&end=20200830&longitude=-4.6755&latitude=36.5687&community=ag&parameters=EVLAND&format=json&header=true&time-standard=lst

when I try a different parameter say "Temperature at 2 Meters" Abbreviation: T2M, (replace EVLAND with T2M), I receive valid data.
What might be the problem with EVLAND?
Thank you

Hello,

A subject matter expert has been notified and will answer your question as soon as possible.

Regards,

ASDC User Services

We've identified an issue with the precision of the evaporation land parameter's value, causing it to display 0.0 values. We are working to address the issue.

ASDC - bmacpher wrote:
> We've identified an issue with the precision of the evaporation land
> parameter's value, causing it to display 0.0 values. We are working to
> address the issue.

thank you for your reply.
Could you provide estimate time of rectifying this issue?

Thank you for the replay we are working on the issue currently and expect to have it resolved in about a week; we will be updating the API to respond with updated units 'kg m-2 s-1 10^6' instead of the 'kg m-2 s-1' that currently has the precision issue. That unit change is a scaling factor of 1 million.

If that is not sufficient for your needs and please pull the data yourself from MERRA-2 on https://giovanni.gsfc.nasa.gov/giovanni/, at the current time we cannot accommodate any higher level of precision. Other than the scale factor POWER does not alter the data please review the documentation from MERRA-2 for the definition and use cases.