1. OPERATIONAL and USER STATISTICS
User Metrics
Distribution and Ingest Metrics
Operational and User Statistics
9/17/2018

2. Operational and User Statistics
* “Requests” involve direct contact with User Services personnel. They do not include ftp, Web hits, etc.
Operational and User Statistics
9/17/2018

3. Quick View -Throughput
Ingest Function
~17 TB/year
Archive Function
2-3 TB/month
Currently holding ~40 TB
Distribution Function
~ 4.4 TB in FY02
1824 (1004) requests in FY02
3753 (1174) requests in FY03 so far
Distribution Methods
Non-ECS (FY02)
3 TB (~6000 CD-ROMS .5GB each)
0.169 TB via FTP
ECS (FY02)
~ 1.2 TB (EDGRS), mostly FTP
NSIDC DAAC ECS Machine Room
Operational and User Statistics
9/17/2018

4. Operational and User Statistics
Following slide is from John Moses at ESDIS project. It applies to all DAACs
Operational and User Statistics
9/17/2018

5. EOSDIS User Base Based on Email Addresses of Users
Includes users getting data and products from ECS and non-ECS (I.e., heritage EOSDIS Version 0/1 systems at the DAACs). Excludes Data Pools (no user characterization yet)
Distinct users are determined solely from removing duplicate addresses collected from the DAACs.
Distinct Users are determined after address duplicates are removed from cumulative Web download, Anonymous FTP , orders, and off-line inquiries. Historically (I.e., started several FY ago), GPRA Distinct Users are calculated separately and summed across access methods (I.e., the number of Distinct users is slightly lower in the Pie Charts than as reported in GPRA metrics)
Each of the Top Ten U.S. Educational Institutions represent no more than 1% or 2% of the total U.S. Educational Institution Distinct Users
Based on Addresses of Users
October 1, August 31, 2003