1. PoDAG 21: Flow Diagrams 1 Data Flow Diagram(s) PoDAG asked for a data flow diagram with an indication where NSIDC was involved.  Each data stream is unique, so NSIDC involvement varies  Several diagrams follow, from various sources

2. PoDAG 21: Flow Diagrams 2 AMSR-E Dataflow

3. PoDAG 21: Flow Diagrams 3 ICESat data flow Univ. of Texas SCF (UTCSR) Texas Ancillary Data (Met) Level 1 Ancillary Data GSFC DAAC Greenbelt, MD. I-SIPS NASA/GSFC Greenbelt, MD. Level 1 & 2 Algorithm Updates/Science QA ICESAT SCF NASA/GSFC Greenbelt, MD (GSFC1) ICESAT Science Team (GSFC2) Algorithm Updates Science QA Level 1 & 2 Level 3 PDR, Data (L0 (Back-up), 1, 2 & 3; Ancillary), Metadata, & QA Metadata updates DAP & Metadata PAN PDRDs ECS at NSIDC DAAC Boulder, CO. ICESAT Product Delivery Record Server Level 0 (Back-up) PDR, …… PDRDs, … EOS Data and Operations System (EDOS) Greenbelt, MD. Users

4. PoDAG 21: Flow Diagrams 4 Data Centers/Service Providers Interfaces This is the generalized flow, as proposed by the SEEDs effort

5. PoDAG 21: Flow Diagrams 5 Quick View: Systems ECS at NSIDC Components  Ingest  Science Data Server  Distribution Systems  Workstations  Mass Store  RAID  Output Devices Non ECS (V0 or Heritage) System at NSIDC Components  Ingest  Production  Archive  Distribution  Information Services Systems  Workstations/Servers  Mass Store  RAID  Output Devices AMSR GLAS MODIS PDSSUBSETTER EDG VO GATEWAY NISE Data Pool AMSR L1A NSIDC WEBSITE