1 / 6

Data Compression Study for GOES-R Sounder (ABS/HES)

Data Compression Study for GOES-R Sounder (ABS/HES). H-L Allen Huang , Bormin Huang, Kevin Baggett CIMSS/SSEC/UW-Madison Timothy J. Schmit, Roger Heymann ORA/OSD/NESDIS/NOAA. - Approaches On-Ground; On-Board - Current Compression Study Results. GOES Users Conference II Oct. 1-3, 2002.

efrem
Download Presentation

Data Compression Study for GOES-R Sounder (ABS/HES)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Data Compression Study for GOES-R Sounder (ABS/HES) H-L Allen Huang, Bormin Huang, Kevin Baggett CIMSS/SSEC/UW-Madison Timothy J. Schmit, Roger Heymann ORA/OSD/NESDIS/NOAA - Approaches On-Ground; On-Board - Current Compression Study Results GOES Users Conference II Oct. 1-3, 2002

  2. GOES-R SOUNDER COMPRESSION TEAM APPROACH • Ground approach (CPU/Storage intensive - ~O(N4)) • Independent Principal Component (IPC) • NESDIS/NOAA - Mitch Goldberg • Dependent Principal Component (DPC) • CIMSS/UW - H-L Allen Huang • On-Board Approach (CPU/Storage - low - <<O(N4)) • Rice - GSFC, PenShu Yeh • Wavelet/JPEG 2000 - Aerospace, Steve Hou • Wavelet/UW/2002 - CIMSS/UW, Bormin Huang

  3. GOES-R SOUNDER UW COMPRESSION APPROACHES • UW Wavelet -On Board/On Ground ABS/HES Data 3-D Integer Wavelet Transform Zerotree Coding Arithmetic Coding Encoder Compressed Data • UW DPC - On Ground Only (if time permits) PC Analysis /SVD PC Truncation/Transformation ABS/HES Data Covariance Compressed Data

  4. UW DPC can achieve practical lossy data compression ratio of 10 to 20 LW MW CR=25 CR=13 SW However, It requires significant H/W resources CR=20

  5. UW DPC lossy compression loss is mainly “Noise” only(very little “Signal” loss ~ 10-3) Temperature Ch. CR=10 Window Ch. CR=10

  6. ABS/HES COMPRESSION STUDY SUMMARY UW - Wavelet Lossless (~2) DPC Lossy (~10-20; tunable) (On-ground only) NESDIS - IPC Lossy (~10-20; tunable) (On-ground only) Aerospace - Wavelet Lossless (~2) Wavelet Lossy (~4-?; tunable) GSFC - Rice Lossless (~2) Rice Lossy (~4-?; tunable) ? - under study Poster - Data Compression Study for GOES-R Sounder Comes to the poster for grand details and to discuss other team member’s results too !!!

More Related