ames research center airborne sensor facility data processing milestones supported 91 mas flights...

Ames Research Center Airborne Sensor Facility

Data Processing Milestones • Supported 91 MAS flights since June 1st of 2001• Shipped 750 data tapes since June 1st of 2001• Processed 500 gigabytes of data June 1st of

2001• Level-0 browse Quick-look within hours of

landing• Support PI with special requests for image

products or data processing priorities• New data processing workstations • Expanded disk storage capacity


Breakdown of MAS flights per Year Number of MAS Missions

0

10

20

30

40

50

60

70

80

1995 1996 1997 1998 1999 2000 2001 2002 2003

FY Year

Proc

esse

d Fl

ight

s


Breakdown of MAS flights per YearGigabytes of MAS Data

0

50

100

150

200

250

300

350

400

1995 1996 1997 1998 1999 2000 2001 2002 2003

FY Year

Gig

abyt

es


• 15 ER-2 Flights

• LaRC DAAC ?

Level-1b (data version 0.1) generated in the field February 2003Level-1b (data version 1.0) distributed May 2003

THORpex(1/31/2003 – 3/14/2003)


• 13 ER-2 Flights

• Archived at GSFC DAAC

Level-0 raw (1 to 1) data generated in the field (Wisconsin) December 2002Level-1b (data version 1.0) distributed February 2003

TX-2002(11/18/02 – 12/12/02)


• 21 ER-2 Flights

• Two Flights Have Numerous Missing Scan-lines

• Archived at GSFC DAAC

Level-1b (data version 0.1) generated in the field July 2002Level-1b (data version 1.0) distributed December 2002

CRYSTAL-FACE(6/7/02 – 8/10/02)


• 17 ER-2 Flights

• Archived at LaRC DAAC and GHRC

Level-1b (data version 1.0) distributed February 2002Level-1b (data version 2.0) distributed September 2002

CAMEX-4(8/13/03 – 9/26/03)


• 13 ER-2 Flights

• Port 2 Spectral Data Not Within Specs

Level-1b (data version 1.0) distributed October 2001Level-1b (data version 2.0) distributed September 2002

CLAMS(6/12/01 – 8/2/01)


• 16 ER-2 Flights

• Half-ASTER configuration

•Archive at GSFC DAAC and University of Wisconsin

Level-0 raw (1 to 1) generated in the field (WI) April 2001Level-1b (data version 1.0) distributed December 2001Level-1b (data version 2.0) distributed October 2002

TX-2001(3/2/01 – 4/6/01)


• 31 ER-2 Flights•VIS/SWIR Calibration Issues• Archive at GSFC DAAC, S.A.,

Code 913

Level-1b (software vs. #9) (data vs. 0.1) generated in the field Aug/Sep 2000At the last MAS meeting VIS/SWIR calibration issues resolved. June 2001Level-1b (software vs. #10) (data vs. 1.0) distributed Jul/Aug 2001Problems with HDF file uncovered, (solar and sensor zenith and Azimuth)

Mar/May 2002Level-1b (software vs. #10) (data version 2.0) processed October 2002Problem with HDF file uncovered, (Hot target wrap-around) October 2002Level-1b (Final data vs. 2.0) processed and distributed December 2002

SAFARI(7/25/00 – 10/19/00)


MAS Data Reprocessing Fix Scientific Data Sets Reprocess

Sensor Azimuth Angle SAFARISolar Zenith Angle TX-2001Solar Azimuth Angle CLAMS

CAMEX-4

Scale Factors ReprocessHot targets in SAFARI are clipped SAFARIHDF Image data is stored as a signed integerAdjusted Image scale factors to compensate

Version, tracking and archivingData Version (Granule Version)File name “…V02.hdf”Updated data to the DAAC


Improvement in MAS Data Processing Time

• THORpex 2 month• TX-2002 2 months• CRYSTAL FACE 4 months• CAMEX-4 4 months• CLAMS 3 months• TX-2001 7 months


Level-1b Data Processing Issues

• BB spikes• Calibration Consensus• Time-code Generator• Missing Scan Lines• Descending Scan Line Spikes• SCSII Errors (disk directory)• Engineering Sub-systems


Level-1b Data Processing Ongoing Efforts

• Ongoing refinement and enhancement of Level-1b and Level-0 software

• Automated Quality Control• Level-1b Users Guide• Level-1b Operators Guide • Level-2 Products


MAS Web Page

• Transition from GSFC to ARC• Section 508 compliant• Automation for updates• Enhanced Software Tool posting• MAS Article Archive• Map access


MAS Data Volume from DAACs in Gigabytes

DAAC Year Media TotalFTP TotalGBGSFC 2001 204.52 4.31 208.83

2002 574.65 12.87 587.52Apr 2003 0.0 2.02 2.02

TOTAL 779.17 19.2 798.37

LaRC 2001 153.07 - 153.072002 24.38 - 24.38

Mar 2003 0.53 - 0.53TOTAL 177.99 - 177.99


MAS Data Orders from DAACs


DAAC Issues

ames research center airborne sensor facility data processing milestones supported 91 mas flights...

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