Surface relative humidity data

[ghazar22]

I need some reliable data source for surface relative humidity , I was checking AQUA AIRS but I am not sure what all Relative humidity data sets contain there. Can you please help with some data source for surface relative humidity data especially available over ASIA .

[GES DISC -thearty]

Are you interested in using an AIRS Level 2 or Level 3 surface relative humidity? The Level 2 variable is called "RelHumSurf" and the Level 3 variable is called "RelHumSurf_A" or "RelHumSurf_D" for the ascending or descending parts of the orbit. More information about these datasets is available on the dataset landing pages which you can get to by using the links in the following dataset citations. If you use the Level 2 data please remember to apply the relevant quality flag "RelHumSurf_QC".

AIRS project (2019), Aqua/AIRS L2 Standard Physical Retrieval (AIRS-only) V7.0, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: [Data Access Date], 10.5067/VP1M6OG1X7M1

AIRS project (2019), Aqua/AIRS L3 Daily Standard Physical Retrieval (AIRS-only) 1 degree x 1 degree V7.0, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: [Data Access Date], 10.5067/UO3Q64CTTS1U

An overview of the AIRS Mission is available in the following document:
https://docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/Overview_of_the_AIRS_Mission.pdf