1. NOAA CLASS Demo NOAA/JPSS Jorel Torres
JPSS Satellite Liaison, CIRA/CSU, NOAA Joint Polar Satellite System
AMS – 98th Annual Meeting, Austin, TX
January 2018
National Oceanic and Atmospheric Administration | Joint Polar Satellite System (JPSS)

2. Objectives Access NOAA CLASS website
Navigate through CLASS online website, find JPSS products, and successfully request and obtain them
Goal: to successfully obtain Day/Night Band (DNB), I-5 (11.45um) VIIRS data from the Hurricane Harvey event
29 August 2017 between 0-12Z

3. NOAA CLASS Portal Type NOAA CLASS website https://www.class.noaa.gov
[Show students how to access data.]

4. JPSS data info
JPSS-1 data has become NOAA-20 and is placed in the same orbital plane as SNPP
JPSS-1 will operate ~ 50 minutes ahead of SNPP
SNPP/JPSS data latency into NOAA CLASS is ~ 6 hours
Many current SNPP products are available in daily ‘.tar’ files, for the last 90 days.
Click link: ftp://ftp-npp.class.ngdc.noaa.gov
NOAA-20 data/products undergoing testing (currently, preliminary, non-operational), all data coming to CLASS will be restricted for awhile.
Additional questions can be asked via the NOAA CLASS

5. JPSS Products in NOAA CLASS
[Show students how to access data.]

6. What do data files look like?
For this case scenario, they come in HDF5 file format, but have seen data files in other formats (e.g. NetCDF, .nc files)
Comprised of sensor data record file and terrain geo-location file

7. So I have data, but how do I display it?
Free software packages to download, and display polar data
McIDAS-V
HYDRA

8. Dataset displayed in McIDAS-V
Emitted City
Lights
Clouds
Center of Hurricane Harvey

9. NOAA CLASS video
Video below shows how users can access DNB/I-5 data from Hurricane Harvey event.

10. Contact info:
Questions?