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Currently the low latency solar data products are delayed in the POWER data system due to a delay in the processing of the source data from FLASHFlux. We do not have a timeline for resolution of the problem, but as soon as the source data is available, we will process it for release in POWER.

Hello Brayan, The NASA POWER project provides the variables you are interested in. While we don't provide temperature anomalies, we have the temperatures themselves. From there you can decide on what period for averaging then producing anomalies. We have a data viewing and ordering tool, https://pow...

Hello, The hourly "All Sky Surface Shortwave Downward Irradiance" data is from the CERES SYN1deg data product. From their Data Quality Summary, they state that for the shortwave fluxes, "the integrated cosine of the solar zenith angle is considered the midpoint of the hour box in orde...

Hi josh33,

Thanks for pointing this out. We found an error in one of our behind-the-scenes fields that prevented this parameter from being served through the API. It should be good to go now.

Colleen

Hi josh33, We worked on the API and associated metadata yesterday. Surplus is now available; units for others should be correct now. Give this a try to see if it fits your needs better: https://power.larc.nasa.gov/api/temporal/climatology/point?start=2001&end=2020&latitude=43.6532&longit...

This API call will give the daily average insolation per month, https://power.larc.nasa.gov/api/temporal/climatology/point?start=1990&end=2019&latitude=43.6532&longitude=-79.3832&community=re&parameters=ALLSKY_SFC_SW_DWN&format=json&header=true . We have some errors in th...

Hi josh33, The dictionary value for longname is incorrect, it should read "Minimum Available Insolation is the climatological minimum rolling sum over the n-day period in the given month." We revised the equations that give the values for the parameters. At this point it might help if you ...

Hi josh33,

The parameter name has changed; MIN_AVAIL_INSOL_CONSEC_XX gives units of kW-hr/m^2/day while INSOL_CONSEC_XX_MIN gives the percentage. We have removed INSOL_CONSEC_XX_MIN_PCT from the API.

Hopefully this will get your model back on track.

Thanks,
Colleen

The POWER data looks to be identical to the MERRA-2 hourly data with the adjustment for local time. Since the MERRA-2 data grid box size is 0.5 latitude x 0.625 degree longitude, the average elevation for the grid box is quite a bit larger than the surface site 332 m (MERRA-2) to 74 m. That may be t...

Yes, the upward component of the shortwave flux accounts for the albedo. Surface net downward shortwave flux is defined in the same manner as longwave, so your equation for that is correct (SWGNET = SWGDWN - SWGUP). If you would like to know the albedo used in the flux calculation, you can divide th...