Obtaining Data

Data Access

Below are a list of portals where data can be accessed in real-time ordered from data archives. In addition to the official NASA and NOAA DAACS, access has been kindly provided by partnering institutions to serve the community. For assistance on how to rder the data, refer to the CLASS tutorial on our training page.Code to read, visualize, and analyze sounding datasets are also available an external GitHub page.

Real-Time

Name	Algorithm	Satellites	Domain	Description
NOAA CLASS	NUCAPS	NOAA-20 S-NPP MetOp A MetOp B	Global	Official data access portal for the NUCAPS archive, with a latency of 2-3 hours. Data from MetOp satellites can be assessed under the IASI menu and is referred to as the IASI L2 product.
NASA DAAC	CLIMCAPS	NOAA-20 S-NPP	Global	Official data access portal for the CLIMCAPS archive, with a latency of 2 months.
NASA GESDISC	AIRS V6	AQUA	Global	Soundings from the AIRS Science Team Algorithm.
NASA LANCE	AIRS V6	AQUA	Global	Soundings from the AIRS Science Team Algorithm in near-real time, with a lacency of 3 hours or less.
Wisconsin FTP	NUCAPS	NOAA-20 S-NPP	CONUS	Uses the Direct Broadcast antenna network to obtain the Level 1 sounding data immediately following an overpass of the site. Once downloaded, the Community Satellite Processing Package (CSPP) software is run locally to produce NUCAPS in real-time. The University of Wisconsin provides for CONUS through their ftp site.
GINA Direct Broadcast	NUCAPS	NOAA-20 S-NPP	Arctic	Same as above. Geographic Information Network of Alaska (GINA) in the University of Alaska shares polar NUCAPS data their ftp site. NUCAPS data is accessible by selecting Levels → 'nucaps_level2'
Wisconsin Bolt	NUCAPS	NOAA-20 S-NPP MetOp A MetOp B	Global	Same as above. The University of Wisconsin provides for CONUS through their http site.