NOAA KLM User's GuideSection 9.3.1.2 |
Introduction Page, NOAA KLM TOC,
Acronyms,Each file contains a single month of monthly mean radiation budget data (25 records). The first record is the header. It contains six types of data: HIRS Night OLR, HIRS Day OLR, AVHRR Night OLR, AVHRR Day OLR, Available Solar Energy, and AVHRR SW Absorbed Radiation. Each type of data is associated with four records (The Northern Hemisphere pair and the Southern Hemisphere pair).
The format of the header record for the Monthly Means (and also the Seasonal and Annual Means)data is shown in Table 9.3.1.2-1.
| Field | Bytes | Type | Description |
|---|---|---|---|
| HEADER | 1-100 | ASCII | Text header |
| SATID | 101-102 | I*2 | The satellite ID |
| RPTREQ | 103-104 | I*2 | The type of mean: 0=Monthly; 1=Winter; 2=Spring; 3=Summer; 4=Fall; 5=Annual. |
| RPTYR | 105-106 | I*2 | The four digit year of the initial data. |
| RPTMO | 107-108 | I*2 | The month of the initial data. |
| VER | 109-110 | I*2 | Version number of this file format. |
| RPTOY | 111-112 | I*2 | The four digit year of the latest data contained in the file. |
| RPTOM | 113-114 | I*2 | The month of the latest data contained in the file. |
| RPTOD | 115-116 | I*2 | The day of the month of the latest data contained in the file. |
| SPARES | 117-122 | I*2 | SPARES |
| MAXCNT | 123-124 | I*2 | The number of records in the file . |
| SPARES | 125- 126 | I*2 | SPARES |
| EPOCHY | 127-128 | I*2 | The four digit satellite epoch year (launch year). |
| EPOCHD | 129-130 | I*2 | The satellite epoch day-in-year (launch day). |
| EPOCHT | 131-132 | I*2 | The time of day of the satellite launch: 1=morning; 2=afternoon. |
| TYPREC | 133-134 | I*2 | The record type of this (header) record (=1). |
| NUMTYPS | 135-136 | I*2 | The number of data types in the file . The maximum number of data types is 35. The current number supported is 6. |
| NUMRECS |
137-138 | I*2 | The number of records per data type is 4. |
| TYPENAM | 139-208 | 32 I*2 | The names of the number of data types currently supported in the file. There is one name for each of the NUMTYPS supported. 2=HN, 3=GLN, 13=HD, 15=GLD, 24=AS, 26=GS |
| SPARES | 209-6447 | I*2 | The spare bytes in the header record. |
Tables 9.3.1.2-2 and 9.3.1.2-3 contain the format for Records 1 and 2 of the Monthly Mean Data, respectively.
| Field | Bytes | Type | Description |
|---|---|---|---|
| SPARE | 1-2 | I*2 | SPARES |
| BCDDAY | 3-4 | I*2 | The actual day number, relative to the satellite Epoch, of the first day in the period covered in the filel. (i.e. for monthly means the day is the relative to the first day of the month) |
| SPARES | 5-12 | I*2 | SPARES |
| RCTYPE1 | 13-14 | I*2 | The indicator for the first record of the hemisphere: 02 = Record 1 for the Northern Hemisphere; 04 = Record 1 for the Southern Hemisphere. |
| SPARE | 15-16 | I*2 | SPARES |
| FIELD | 17-18 | I*2 | The Field mnemonic. (See Table 9.3.1.1-4.) |
| NORS | 19-20 | I*2 | The hemisphere indicator: 0= North; 1= South |
| BEGINDATE | 21-24 | 2 I*2 | The start time as YYYYMM of the data in the record. |
| SPARE | 25-26 | I*2 | SPARES |
| ENDDATEF | 27-30 | 2I*2 | The end time as YYYYMM of the data in the record. |
| SPARES | 31-276 | I*2 | SPARES |
| I2MAP | 277-23476 | I*2 | The mean values of the first 11600 I*2 elements of the 20626 elements of the Equal Areas/Equal Aspect Map |
| Field | Bytes | Type | Description |
|---|---|---|---|
| RECTYP2 | 1-2 | I*2 | The indicator for the second record of the hemisphere: 03=Record 2 for the Northern Hemisphere; 05=Record 2 for the Southern Hemisphere. |
| FIELD | 3-4 | I*2 | The Field mnemonic. (See Table 9.3.1.1-4.) |
| NORS | 5-6 | I*2 | The hemisphere indicator: 0=North; 1= South. |
| NCELL | 7-186 | 90 I*2 | The number of longitude bins in each of 90 latitude bands of the (current) Equal Areas/Equal Aspect Pathfinder Maps starting at the pole and abutting (to the west) the Greenwich Meridian. |
| SPARES | 187-276 | I*2 | SPARES |
| I2MAP | 277- 18328 | I*2 | The mean values of the last 9026 I*2 elements of the 20,626 elements of the Equal Areas/Equal Aspect Map |
| SPARES | 18329-22036 | I*2 | SPARE |
| E2MAP | 22037-23476 | I*2 | The 720 I*2 mean elements of the equatorial band data for the hemisphere |
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