SSM/I Brightness Temperature Data Availability

The tables on this Web page provide the data availability and missing dates for two brightness temperature data sets available from NSIDC. One data set is in the Equal-Area Scalable Earth Grid (EASE-Grid) projection, and the other is in the Polar Stereographic projection. The data sets are the following:

Table 1 provides the data availability and Table 2 provides a list of missing dates.
 

Table 1. Brightness Temperature Data Availability by SSM/I Platform and Projection
Platform Dates of Availability (yyyy-mm-dd)
 
EASE-Grid Projection
Polar Stereographic Projection
F8 1987-07-09 to 1991-12-31
(85 GHz are not available for February 1989 to December 1991) 		1987-07-09 to 1991-12-31
F11 1991-12-03 to 1995-05-31 1991-12-03 to 1995-09-30
F13 1995-05-03 to 2008-06-30 1995-05-03 to 2008-06-30


Table 2. Missing Dates by Projection
Year Missing Dates (yyyy-mm-dd)
 
EASE-Grid Projection
Polar Stereographic Projection
1987 1987-08-25 to 1987-08-26
1987-10-06 to 1987-10-07
1987-12-03 to 1987-12-31		 1987-08-25 to 1987-08-26
1987-10-06 to 1978-10-07
1987-12-03 to 1987-12-31
1988 1988-01-01 to 1988-01-12
1988-05-06 to 1988-05-09
1988-09-23
1988-12-25 to 1988-12-27		 1988-01-01 to 1988-01-12
1988-02-28 (12.5 km data only)
1988-05-06 to 1988-05-08
1988-09-23
1988-12-25 to 1988-12-27
1989 1989-06-07
1989-07-23 to 1989-07-24
1989-10-23		 1989-06-07
1989-07-23 to 1989-07-24
1989-10-23
1990 1990-08-13
1990-08-25 to 1990- 08-26
1990-10-21 to 1990-10-22
1990-10-26 to 1990-10-28
1990-12-22 to 1990-12-26		 1990-08-13
1990-08-25 to 1990-08-26
1990-10-21 to 1990-10-22
1990-10-26 to 1990-10-28
1990-12-22 to 1990-12-26
1991 1991-12-27 (F8 only) 1991-12-27
1992 1992-06-18 1992-01-13
1992-06-05
1992-06-18
1993 1993-01-04 1993-01-04
1994 1994-07-20
1994-11-20 to 1994-11-21		 1994-07-20
1994-11-20 to 1994-11-21
1995 1995-05-21 * 1995-11-05 to 1995-11-08
1996 1996-12-01 1996-12-01
1998 1998-03-11 1998-03-11
1998-08-20
2000 2000-12-01 2000-12-01
2001 No missing dates
2002 No missing dates
2003 No missing dates
2004 No missing dates
2005 No missing dates
2006 No missing dates
2007 No missing dates
2008 Missing dates for 85 GHz by projection, pass, and polarization:

Region
Pass
Polarization
 Day of Year (ddd)
Northern
Ascending
Horizontal
 128
Northern
Descending
Horizontal
 118 - 128
Southern
Ascending
Horizontal
 123 - 127
Southern
Descending
Horizontal
 114 - 116, 118, 120, 123 - 182
Southern
Descending
Vertical
 117, 121
Global
Ascending
Horizontal
 128 - 182
Global
Descending
Horizontal
 117 - 127, 129 - 182
Global
Descending
Vertical
 173, 175, 176, 179-182

* There are no northern data and only ascending passes for global and southern projections for this date.

Page last updated: 04/07/09