Aircraft-Based Observations Data Statistics
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Reports on the GTS
Historical Monthly Data Volumes on WIS
See reports below:
- Report 1: monthly mean daily volumes of aircraft-based observations by data source and by program back to 2007
- Report 2: monthly mean daily volumes of aircraft-based observations by region back to 2007
- Report 3: monthly mean daily volumes of aircraft-based observations by data source and by program back to 2018
- Report 4: monthly mean daily volumes of aircraft-based observations by region back to 2018
The direct link to the fully interactive report is here.
[Courtesy of the Canadian Meteorological Centre]
- Since 2003 by Format type (Updated to August 2019 - AMDAR, BUFR, AIREP & ADS)
Recent month, geographically by format type (Updated to July 2021)
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All Levels
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Surface-701hPa |
12-month % Change |
| All | All | All |
Global Coverage
Horizontal Coverage
The following 24-hour coverage maps provide an indication only of the global aircraft-based observations coverage and are provided courtesy of the NOAA/ESRL/GSD AMDAR Data Display.
30 November 2021
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Most recent coverage maps
| 31 July 2021 | 31 August 2020 |
| 31 May 2021 | 30 June 2020 |
| 31 March 2021 | 4 May 2020 |
| 31 January 2021 | 31 January 2020 |
| 31 October 2020 |
Selected coverage maps dating back to June 2006 and including the above are available at the WMO Sharepoint here.
Vertical Profile Coverage
Vertical profile coverage maps are derived from the NOAA, Earth Systems Research Laboratories, Global Systems Laboratory, AMDAR database and website, based on weekly averaged daily vertical profile statistics.
Recent
| 25 July 2021 | 28 June 2020 |
| 24 January 2021 | 29 March 2020 |
| 29 November 2020 | 1 December 2019 |
Older
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Valid
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Profiles Produced
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Global
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Americas
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Europe
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SW Pacific
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Africa
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MidEast/ Asia |
| 2 Jul 2017 |
93403 soundings at 579 airports
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27 Mar 2016
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90284 soundings at 550 airports
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17 May 2015
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79231 soundings at 542 airports
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26 Apr 2015
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78257 soundings at 467
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26 Oct 2014
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66791 soundings at 540 airports
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26 Jan 2014
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39990 soundings at 528 airports
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15 Sep 2013
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48699 profiles at 529 airports
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Notes
- Colours:
- Yellow = less than 1 profile per day
- Green = 1-7 profiles per day
- Blue = 8-24 profiles per day
- Purple = greater than 24 profiles per day
- Statistics are based on weekly profiles ingested by NOAA/ESRL/GSD for 7 days starting from the valid date.
Aircraft-based Observations Statistics From Other Centres
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Environment Canada, CMC [Login access required - contact the Secretariat]
- NOAA/ESRL/GSD Aircraft Data Web
- Sounding Statistics for aircraft ascents and descents at all airports served by reporting aircraft, listed by week.
- ECMWF