Forums

Back

Re: Missing bands for RTMA in historical data

RSS (Opens New Window)(Opens New Window)
JC
Jacob Carley, modified 3 Years ago.

Re: Missing bands for RTMA in historical data

Youngling Posts: 69 Join Date: 12/17/14 Recent Posts
Hi Anil,

The historical archive at NCEI was established many years ago and was based upon the original suite of analysis fields that were provided in the RTMA when it was first operational. It uses the WMO headers associated with fields that go out for AWIPS and is archived under the NDGD. Unfortunately this has not been something we've been able to update to include new analysis fields that have been added since, like visibility and cloud cover.

Regards,
Jacob

On Thu, May 5, 2022 at 11:19 AM Anil M <manchikatlaa@google.com> wrote:

Hello Dr Carley,


The current RTMA running data which is available for 14 days has two kinds of files 

https://www.ftp.ncep.noaa.gov/data/nccf/com/rtma/prod/rtma2p5.20220505/



rtma2p5.t00z.2dvaranl_ndfd.grb2_wexp  which has 12 bands including specific humidity, visibility, and total cloud cover , rtma2p5.2022050500.pcp.184.grb2   which has precipitation band


Where we try to access the historical data. https://www.ncei.noaa.gov/data/national-digital-guidance-database/access/202201/20220105


It doesn’t have specific humidity, visibility, and total cloud cover, even the remaining bands are not available for all hours. For example LEIA98_KWBR_202201052200(precipitation band for 22:00)  doesn’t exist in the above url, Why is it the case?


Regards

Anil

Google Earth Engine Data Team.