Change Record
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Change Record |
Version/Date |
Section |
Description of change |
v1 08/09/2004 |
Full document |
First issue of the document. |
| v2 31/08/2007 | Full document | Update to reflect start of Metop/AVHRR Level 1b. |
| v2A 24/06/2008 | Appendix G (mainly) | Appendix G.5: - Table added summarising record contents for each product format version. - Table for MDR, items ANGULAR_RELATIONS & EARTH_LOCATIONS: Descriptions amended to also specify that points 5 to 2045 used when using every 20th point. Other general layout improvements and typo corrections. |
| v2B 17/07/2008 | Sections 4, 6, 7 | Section 4: Fig. 4-1 updated and note added. In Sec. 4.4.3 "NDVI
information" replaced by "vegetation products". Section 6: LRPT bullet in Sec. 6.1.1 deleted (because LRPT not functional). Table 6-1 row for "NOAA-AVHRR raw data format" deleted. Table 6-5 MDR-1B row: added note on pixel number differences for Metop/NOAA. Section 7: Third bullet in Sec. 7.1.1 item 1 replaced with new sentence. Sec. 7.1.2 updated. Several typos corrected. |
| v2C 25/08/2008 | Section 4 (mainly) | Section 4.1: List of satellites extended. Section 4.1.2: Section and Table 4-2 titles changed from “Scanning…” to “Nominal scanning…”. GAC gap value between pixels corrected from 3.3 to 2.2 km. Figure 4-1 corrected for Calibration output arrow. Section 4.2.2.2: A1 albedo “computed” not “estimated”. Section 8: Deleted “planned” before Cal/Val activities. |
| v2D 29/08/2008 | Section 4 | Section 4.1: Sentence “The AVHRR/2 version…” brought up to date. |
| v3 14/09/2009 | Full document | Sec. 2: Added reference RD24. Sec. 3: Document version numbers updated. Sec. 4.1.2: Added graphic showing GAC/LAC footprints. Sec. 5: EPSView description replaced by brief text on generic tools. (Also minor associated updates to Sec. 2 & 6.) Sec. 6.3.4: Added description of how to derive radiances from MDR data using factors. Improved equation and its description. Sec. 11: In MDR-1B table: Correction to units for Scene_Radiances as given under Description. Also, values of Dim1, Type and Type Size corrected for Frame_Indicator & Time_Code in order to agree with PFS. In following bitfield description tables, updates for Instrument_Invalid_Analog_Word_Flag (totally wrong before), Time_Code, Calibration_Quality. Document restructured – App. F & G renamed as Sec. 10 & 11, and common appendices removed to keep as separate document. Other general typo corrections, and minor text and hyperlink amendments. |
| v3A 21/01/2011 | Sections 1 and 3 | Sec. 1: Added mention of vegetation (NDVI) trial dissemination. Sec. 3: Configuration History updates – addition of PPF software versions. Other minor text updates and corrections, and hyperlink updates. |