NUMBER 221 DATE: 12/07/01

Sector Processing Center (SPC):

During October, EUM, JMA, CSU, MSC and NOA processed 94% of A data into B1/B2 data.

Normal operations for October were reported by EUM, JMA, and MSC. CSU reported that solar radio frequency interference required collection of substitute images in the 2100 UTC slot for 2 through 19

October. NOA reported the failure of the AVHRR on NOAA-14 in October.

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

Satellite Calibration Center (SCC):

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

AC data for GMS are received on 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 now received by Internet, except for the B2 data from JMA and NOA. Delivery by ftp of all data (except DX) from the GPC to NOAA/NCDC and to NASA Langley is underway.

Deliveries of B2 data from NOAA-14 are complete. Production of final B3 data has been completed through October 01 (the last) and deliveries are nearly finished. Since the NOAA-14 AVHRR failed in October; NOAA-16 will become the primary calibration reference for ISCCP for November 01 and beyond.

NOAA-15 B2 data have been received for January 99 through July 00 (the last). Production of final B3 data has been completed through July 00. A problem with Channel 3 (3.7 micron) radiances has delayed delivery while it is being investigated.

Deliveries of B2 data from NOAA-16 are current. Processing will require more extensive software changes than for NOAA-15 because of the six channels available.. Also, the cloud detection algorithm and the DX-format 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 99.

Deliveries of B2 data from GOES-10 are current. Production of GOES-10 (preliminary) B3 data is complete through December 99. Final B3 data have been produced through December 99.

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

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

All B3 processing software for the geostationary satellites has now been modified to operate beyond 1999.

TOVS correlative data processing is complete through June 00.

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

DX/D1/D2 data processing is complete through December 99. A problem with NOAA-15 Channel 3 (3.7 micron) radiances is being investigated before delivery. All data products are currently delivered by ftp to the ICA and NASA Langley (except for DX data).

Two CDs of D2 data are now available from NASA Langley, covering 83-88 and 89-93. A new CD covering 94-98 is planned.

The survey of midlatitude cyclones that merges re-analysis and ISCCP cloud data has been completed covering the period from 1983 through 1998.

Data now available on the Web site are monthly mean data for July 83 through December 98 and climatology results based on the period July 83 through December 98. The radiance calibration tables have been updated through December 00. Results from an ISCCP-like analysis of the ScaRab dataset have been described on the site: this analysis produces a unique product that contains ISCCP-like and ERBE-like results for identical fields-of-view and allows for more detailed examination of the angular dependence of broadband radiances. Planning is underway to add the cloud climatology based on surface weather observations to the ISCCP Web site. 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-16 remained good. METEOSAT-6, GOES-11 and GOES-12 are in stand-by mode. NOAA-14 AVHRR failed on 18 October 01, so NOAA-16 became the primary polar orbiter. FY-2B (geo) and FY-1B (polar) are reported to be operational (no details available); FY-1C is scheduled for launch in 02 and FY-2C is scheduled for launch in 03. GMS-5 scan motor problems continue; although the frequency of whole-Earth images has been reduced to prevent sticking, the main 3-hr images required by ISCCP are still collected. MSG-1 launch now scheduled for mid 02. The launches of Envisat, ADEOS-II and Aqua scheduled for early 02 have all been delayed.

Stage B3: July 83 - December 99 (16.5 years)

Stage TV: July 83 - December 99 (16.5 years)

Stage SI: July 83 - December 99 (16.5 years)

Stage D: July 83 - December 98 (15.5 years)

Satellite Network

B Level Data Products

* Delivery backlogs for B2 data (none).

* Delivery backlog for B3 data = 16 months (with respect to planned schedule). B3 data for 198 months have been archived.

* Delivery backlog for DX/D1/D2 data = 28 months (with respect to planned schedule). D1/D2 data for 186 months have been archived.