NUMBER 212 DATE: 03/08/01

Sector Processing Center (SPC):

During January, EUM, JMA, CSU and MSC processed more than 98% of A data into B1/B2 data.

Normal operations for January were reported by EUM, JMA, CSU and MSC.

CSU is still supplying the AC data for GOES-8 because the SCC has not accepted the revised format from MSC. A test of the MSC format is underway.

Satellite Calibration Center (SCC):

AC data were received for January 01 from NOAA-14 (AVHRR and HIRS), METEOSAT-5, METEOSAT-7, GMS-5, GOES-8 and GOES-10. BC data for November 00 for GOES-8, GOES-10, METEOSAT-5, METEOSAT-7 and GMS-5 were shipped to the GPC.

Re-processing of the WV channel normalization for GOES-8 has been completed. Re-processing of the GOES-9 WV data is complete from April 96 through August 97.

Currently, AC data for GMS are the only ones received on media (CD-rom); all other AC data are received and the BC data are sent via Internet.

All BC reports now include normalization for the visible, standard infrared and "split-window" infrared channels (except METEOSAT which does not have a split-window channel), and the "water vapor" channels.

Global Processing Center (GPC):

The GPC continued to receive B2 data, BC data and correlative data in a routine manner; all of these data are currently received on media, except for the BC data and the B2 data from MSC which are received via Internet. Arrangements for ftp delivery of B2 data from CSU and EUM are being developed. Delivery by ftp of all data (except DX) from the GPC to NASA Langley is being tested; when completed, this system will be cloned for deliveries to NOAA/NCDC. TOVS data are being obtained from NOAA/NCDC by ftp.

Porting of all the ISCCP processing software to workstations is complete. A complete code review is planned for spring. Completion of the migration of some datasets from mainframe-compatible media to workstation-compatible media will still require another two months.

NOAA-14 B2 data have been received through April 00. Production of NOAA-14 (preliminary) B3 data is complete through April 00. Final B3 data have been produced through April 98, but the calibration has been extended through April 00 and is now being reviewed.

Production of NOAA-12 (preliminary) B3 data is complete through December 98 (the last). Final B3 data have been produced through April 98, but the calibration has been extended through December 98 and is now being reviewed..

NOAA-15 B2 data have been received for January 99 through July 00 (the last). Because of the changes in spectral response (visible channel) and the switching of channels (for channel 3), both the calibration procedure and the B3 processing software will have to be revised for NOAA-15 processing. Also, the cloud detection algorithm will have to be revised before these data can be used.

Deliveries of B2 data from GOES-8 are current. Production of GOES-8 (preliminary) B3 data is complete through December 99. Final B3 data have been produced through December 97.

All (January 96 through July 98) GOES-9 B3 have been produced in final form and delivered to the ICA

Deliveries of B2 data from GOES-10 are current. The formatting software is ready.

Deliveries of B2 data from METEOSAT-5 (at 63E) are current. Production of METEOSAT-5 (preliminary) B3 data is complete through December 99.

Production of METEOSAT-6 (preliminary) B3 data is complete through June 98. Final B3 data have been produced through April 98.

Deliveries of B2 data from METEOSAT-7 are current. Production of METEOSAT-7 (preliminary) B3 data is compete through December 99.

Deliveries of B2 data from GMS-5 are current. Production of GMS-5 (preliminary) B3 data is complete through December 99. Final B3 data have been produced through December 97.

TOVS correlative data processing is complete through April 98. An error in the TOVS processing has been discovered that causes somewhat inaccurate temperatures to be reported near the surface and the tropopause in the monthly-mean files that are used to fill in missing observations. This error has been corrected and the TOVS data for 94 through 97 has been re-processed.

Production of the ice/snow correlative dataset is complete through December 99.

DX/D1/D2 data for January 94 through August 94 have been re-processed and the D data for September 94 through December 96 have also been processed. Once final calibration checks are completed and one anomaly in February 94 resolved, these data will be processed for the final time. Starting with the 94 data, a small error in the retrieval of cloud top temperatures will be corrected. This error causes an underestimate of the correction for transmitted IR radiation during daytime and only for clouds with optical thicknesses between about 3 and 5: the magnitude of the error is equivalent to a positive cloud top pressure bias of about 20 mb. All data products are currently delivered on media.

Two CDs of D2 data are now available from NASA Langley, covering 83-88 and 89-93.

Data now available on the Web site are monthly mean data for July 83 through December 93 and climatology results based on the period July 83 through June 94. The ISCCP World Wide Web Home Page can be accessed at URL

ISCCP Central Archive (ICA):

The ICA continued to receive B1 data from NOA, MSC, EUM, CSU and JMA and B3 and D data from the GPC in a routine manner.

The health of GOES-8, GOES-10, GMS-5, METEOSAT-5, METEOSAT-7 and NOAA-14 remained good. METEOSAT-6 and GOES-11 are in stand-by mode. NOAA-16 operations began in late February and will continue in parallel with NOAA-14 operations as long as NOAA-14 remains healthy. The start of FY-2B operations was planned to occur in January 01, but no report has been received.

Stage B3: July 83 - December 97 (14.5 years)

Stage CD: July 83 - December 97 (14.5 years)

Stage D1: July 83 - August 94 (11.2 years)

Stage D2: July 83 - August 94 (11.2 years)

Satellite Network 7/83-12/94	Satellite Network 1/95-12/05
B Level Data Products 7/83-12/94	B Level Data Products 1/95-12/05

* Delivery backlogs for B2 data (NOAA-14 = 9 months).

* Delivery backlog for B3 data = 31 months (with respect to planned schedule). B3 data for 174 months have been archived.

* Delivery backlog for DX/D1/D2 data = 71 months (with respect to planned schedule). D1/D2 data for 134 months have been archived.