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2023
- 26 July 2023 - AERONET Ocean Color Data Upgrade
The AERONET-OC data (Normalized Water Leaving Radiance) procedure of raising from Level 1.5 to Level 2.0 changed starting on July 2023.
Previously expert-based quality control procedure (Zibordi et al. 2021) was applied to the qualified data (with final calibration and corresponding Level 2 AOD).
Now the automated quality control procedure (Zibordi et al. 2022) is applied to all data not formerly quality controlled by March 2022 and upcoming data.
Zibordi, G., Holben, B. N., Talone, M., D'Alimonte, D., Slutsker, I., Giles, D. M., & Sorokin, M. G. (2021). Advances in the ocean color component of the aerosol robotic network (AERONET-OC). Journal of Atmospheric and Oceanic Technology, 38(4), 725-746.
Zibordi, G., D'Alimonte, D., & Kajiyama, T. (2022). Automated Quality Control of AERONET-OC LWN Data. Journal of Atmospheric and Oceanic Technology, 39(12), 1961-1972.
2021
2019
2018
- 2 February 2018 + Version 3 AeroCenter Poster Bash Presentation
- 5 January 2018 - We are pleased to announce the following AERONET Version 3 (V3) database updates:
- V3 Level 2.0 (Quality Assured) Aerosol Optical Depth (AOD) including Angstrom Exponent and Water Vapor database is now available.
- V3 Level 2.0 (Quality Assured) Spectral Deconvolution Algorithm (SDA) retrieval products (fine mode AOD , coarse mode AOD, and fine mode fraction of AOD) database is now available.
- V3 web service now includes a link to download sky scan measurements such as almucantar, hybrid, and principal plane scenarios.
- V3 Level 1.5 and Level 2.0 Almucantar inversion database available 11 January 2018.
- Version 2 Level 2.0 AOD, SDA, and Inversion databases are expected to be maintained concurrently for 1 year.
2017
- 15 March 2017 - Version 3 AOD data format has been modified to include five (5) additional wavelengths for the 12-channel CE-318-T SEAPRISM instrument.
- 28 March 2017 - Due to new security requirements, the AERONET web site access has changed from HTTP to HTTPS protocol. Please update your web site links and bookmarks with the following address: https://aeronet.gsfc.nasa.gov
2016
- 10 May 2016 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-KORUS-AQ instrument deployment has been established in South Korea, Japan, and China from 1 April to 31 July 2016. The network will be strategically located to take advantage of KORUS-AQ in situ and airborne resources from mid-June 2016.
+ Read More
- 22 June 2016 - The AERONET V3 Level 1.0 and Level 1.5 near-real time (NRT) database is now available. The V3 announcement
+ Read More
- 14 July 2016 -
+Version 3 Announcement
+ V3 Kaufman Symposium Presentation
2015
- 2 October 2015 - CE318-T Sun-Sky-Lunar spectral photometer is accepted for AERONET use. Extensive testing of the new model Cimel photometer has been completed and is now fully integrated into the AERONET network.
The new model is essentially a new control box that has all the functionality of the current CE318 photometers. It is fully compatible with the existing robots and the latest Version 5 sensor heads (with an upgrade kit). We note the following characteristics:
--Improved solar tracking accuracy and operational range
--Micro-stepping: faster and smoother robot response
--Enhanced measurement scenarios yet data sets are compatible with historic database
--Onboard data storage prevents data loss GPS time and location stamped data
--Communication via serial, USB, cellular and DCS satellite
--Lunar measurements
AERONET will no longer accept previous models as new entries into the network. All current models used in the field will continue to be supported but replacement of the analog models (Version 4) produced before 2004 is encouraged.
- 1 October 2015 - Version 3 processing and evaluation begins October 1. The Version 3 processing is now officially in evaluation mode that includes a beta version of the AOD and inversion products. We expect a final release in early 2016. The initial beta release is available via the AERONET web service. These Version 3 beta data products are for evalution and not for publication.
2014
- 16 June 2014 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-USA instrument deployment has been established near Denver, Colorado, from 1 June to 1 October, 2014. The network will be strategically located to take advantage of DISCOVER-AQ in situ and airborne resources between mid-July and mid-August 2014.
+ Read More
2013
- 9 July 2013 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-USA instrument deployment is planned in Houston, Texas, from 1 May to 1 November 2013. The network will be strategically located to take advantage of DISCOVER-AQ in situ and airborne resources in September 2013.
+ Read More
- 9 July 2013 - AERONET has been expanding the spatial distribution of sites in the Southeast U.S. in June and July 2013. The large scale DRAGON-like distribution will be available to support SEAC4RS related activities in August and September 2013.
+ Read More
- 11 January 2013 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-USA instrument deployment is planned over San Joaquin Valley of California for about 4-5 weeks of operation from January 15 to about February 15, 2013. The network will be strategically located to take advantage of DISCOVER-AQ in situ and airborne resources.
2012
- 1 July 2012 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-Southeast Asia measurement campaign is planned for approximately three months of operation in Penang (Malaysia) and Singapore from July 1 to September 30, 2012. The measurement campaign will occur in conjunction with the Seven SouthEast Asian Studies (7-SEAS) Mission.
+ Read More
- 1 March 2012 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-Asia measurement campaign is planned for approximately two months of operation in Japan and South Korea, including the Osaka and Seoul metropolitan areas, from February 15 to May 31, 2012.
+ Read More
2011
- 14 October 2011 - AERONET-EUROPE Trans-National Access (TNA) now offers access to the calibration facility of the Aerosol Cloud and TRace gas InfraStructure (ACTRIS) project for European scientists requiring calibration of their Cimel sun photometer.
- 6 June 2011 - The Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-USA instrument deployment is planned for six weeks of operation the over Washington DC/Baltimore metropolitan area from July 1 to August 15, 2011. The network will be strategically located to take advantage of DISCOVER-AQ in situ and airborne resources.
+ Read More
2010
- 25 October 2010 - The provisional cloud optical depth data products are now available on the AERONET web site. These data can be found in the left margin under "Cloud Mode.".
+ Read More
- 21 April 2010 - The AERONET Spectral Deconvolution Algorithm (SDA) retrievals are now available from the web site as described in the AERONET Update (April 2010). These data can be found under the "Aerosol Optical Depth" data display and download tools as well as the AERONET Data Synergy tool.
+ Read More
2009
- 2 June 2009 - The Second International Conference of Aerosol Science and Global Change will be held in Hangzhou, China, from 18 to 21 August 2009 (Abstracts due 20 June 2009).
- 19 March 2009 - The Second International Conference of Aerosol Science and Global Change will be held in Hangzhou, China, from 18 to 21 August 2009.
- 6 March 2009 - The AERONET, Network Sun Photometery, and MODIS RS Training Workshop will be held in Hangzhou, China, from 16 to 21 August 2009.
2008
- 21 April 2008 - The Maritime Aerosol Network (MAN) aerosol optical data have been released for analysis. These data are collected using Microtops handheld sun photometers on ships traversing infrequently sampled regions of the World's Oceans.
+ Read More
- 13 March 2008 -- As a follow-on to the NASA CATZ campaign held in Maryland, Pennsylvania, and Virginia during the summer of 2007, a multi-year measurement campaign called TIGERZ will be held in India starting in April 2008. + Read More
2007
- 11 September 2007 - The CALIPSO and Twilight Zone (CATZ) campaign AERONET AOD data are now available from CATZ campaign web site.
- 12 February 2007 - A good friend of mine and our AERONET community, Francois Lavenu, died February 10, 2007, in Bamako, Mali. Francois worked for CESBIO/CNES in Toulouse, France. He was instrumental in PHOTONS presence and participation in the African Monsoon Measurement and Analysis campaign. Probably he was in Mali attending to his Agoufou site. ‘Merci beaucoup’ man, it’s working fine. + Read More
2006
- 7 December 2006 - In addition to Version 2, Level 2.0 inversion products, the Level 1.5 data are now available from the AERONET web site. Error bars will be available at a later date.
- 7 November 2006 - The Version 2 inversion products have been released; these data are available for sites that have Version 2, Level 2.0 aerosol optical depth data. For sites without Level 2.0 AOD, Version 2, Level 1.5 inversion data will be available at a later date.+ Read More
- 18 September 2006 - The AERONET server was down from 8 a.m. ET on 16 September to 10:30 am on 18 September 2006.
- 29 August 2006 - Version 2 inversion products have been removed from the web site due to bugs in the algorithm. These bugs have been corrected and the Version 2 inversion reprocessing will be completed within five months. + Read More
- 25 July 2006 - AERONET data sent to the GMS ground station were not stored from 20 July to 24 July 2006. As of 25 July, AERONET data are now stored by the GMS ground station.
- 18 July 2006 - The redesigned AERONET web site, Version 2 inversion products, and the AERONET data synergy tool are now available. + Read More
- 30 June 2006 - Data transferred from Eumetsat were not recoverable between 7 UTC on 27 June and 14 UTC on 29 June 2006.
- 26 June 2006 - Due to facility maintenance, the AERONET server was unavailable from 5 p.m. on June 24 to 3 p.m. ET on June 25. Data will be restored by June 27.
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19 June 2006 - In honor of Dr. Yoram Kaufman, a permanent two hour 'data silence' in our world wide database occurred from 1600 to 1800 UTC on Sunday, 4 June 2006. This coincided with our Memorial Celebration and a data silence from Terra and Aqua satellites as they overpassed NASA Goddard on Sunday. If the 'data silence' critically affects your research requirements, please contact Brent Holben.
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24 April 2006 - For Version 2 data, the water vapor calibration has changed for several sites. These data have been reprocessed to use the correct calibration. The table shows the sites and intervals affected by the water vapor calibration reprocessing in Version 2.
2005
- 15 September 2005 - Version 2 AOT data files are now available for all sites and times. + Read More
- 3 August 2005 - AERONET site name "La_Paguera" has changed to "La_Parguera"
- 1 July 2005 - Version 2 Direct Sun Algorithm Data Released + Read More
- 7 February 2005 - The Level 2.0 almucantar retrieval default parameter for minimum solar zenith angle has changed from 25 to 45 degrees.
- 14 February 2005 - The AERONET download tool has been restored after system updates disabled the tool last week.
- 21 January 2005 - The Spain workshop proceedings are now available through the Optica Online web site.
2004
- 25 May 2004 - The AERONET download tool was temporarily disabled from May 11 to May 13 by administrative system changes. These changes were corrected to restore the download tool functionality on May 13.
- 25 May 2004 - The AERONET/PHOTONS workshop was held on the south coast of Spain from May 10 to May 14, 2004. The workshop was located at the facilities of Huelva University (la Rabida campus) in Huelva, Spain, and the experimentation range "El Arenosillo" which is operated by INTA's Department of Earth Observation, Remote Sensing and Atmosphere (Spain).
- 18 February 2004 - The AERONET/PHOTONS workshop will be held on the south coast of Spain from May 10 to May 14, 2004. The workshop will be located at the facilities of the experimentation range "El Arenosillo" which is operated by INTA's Department of Earth Observation, Remote Sensing and Atmosphere (Spain).
- 10 February 2004 - The AERONE/PHOTONS workshop will be held at the Sounding Station operated by INTA's Department of Earth Observation, Remote Sensing and Atmosphere and at the facilities of the Experimentation Range "El Arenosillo". Further guidance is provided on poster preparation, facilities contacts, and hotel shuttle information. In addition, attendees are encouraged reserve hotel rooms early. + More Info
- 12 January 2004 - Please read the January 2004 AERONET quarterly report for an update on the upcoming project workshop, activities, and new products.
2003
- 29 December 2003 - The AERONET and PHOTON projects will sponsor a workshop in southern Spain from May 10-14, 2004. Please review the AERONET/PHOTON Spain workshop information.
- 30 October 2003 - View AERONET data from the southern California (USA) fires:
- 22 September 2003 - In an effort to protect hardware and data from the adverse effects of Hurricane Isabel, the data server was powered off from 18 September to 22 September, 2003. Data from this period will be processed as soon as possible. We regret any inconvenience.
- 18 September 2003 (11 AM EDT/1500 GMT) - In an effort to protect hardware and data from the adverse effects of Hurricane Isabel, some or all of the data products may become unavailable later today. This outage may last through Monday, 22 September.
- 3 September 2003 - The AERONET Data Display and AERONET Download Tool databases have been modified to provide Level 2.0 almucantar retrievals with relaxed tails criteria.
- 15 July 2003 - The AERONET Download Tool now provides monthly average data for Levels 1.0, 1.5 and 2.0 Aerosol Optical Thickness (AOT) data.
- 25 June 2003 - Please read the AERONET quarterly for an update on the project activities and new products.
- 23 June 2003 - The AERONET Data Display and AERONET Download Tool have been modified to provide the new spheroid model almucantar retrievals (Level 1.5 and Level 2.0). In addition, AOT for the 1640nm channel is available from some AERONET sites.
- 23 June 2003 - The AERONET system resources were upgraded between 2PM and 2:45PM EDT.
- 9 June 2003 - The almucantar retrieval data are being updated from 1993 to present. These retrievals should be available and ready for download by 11 June 2003. Other data products (e.g., AOT) are still available through the data display and download tool.
- 21 May 2003 - The AERONET web database is available through 20 May 2003. The database will be updated to near real-time by 22 May 2003. Slow web server response can be expected as databases are transferred and updated.
- 19 May 2003 - The AERONET web database is operational, however, server response may be slow as other databases are updated.
- 16 May 2003 - The AERONET web database is operational, however, server response may be slow as other databases are updated.
- 15 May 2003 - The AERONET web database is operational, however, server response may be slow as other databases are updated.
- 4 April 2003 - The GOES DAPS data has connection has been restored. Recovered data from 31 March 2003 to 03 April 2003 will be processed and placed on the web as soon as possible.
- 4 April 2003 -The AERONET Download Tool will be upgraded today. Normal operation is expected by 7PM ET.
- 2 April 2003 - The GOES DAPS data has not been available since 1 April 2003. Data collection will resume when access to the GOES data is restored.
- 29 January 2003 - The AERONET web database is operational.
- 9 January 2003 - The Hawaiian GMS satellite receiving station has been upgraded and is operational.
- 9 January 2003 - The AERONET data display interface has been updated and linked to the AERONET download tool. The data display controls streamline the transition between AERONET aerosol optical thickness data levels. Additional data products and display enhancements are under development.
2002
- 3 December 2002 - The AERONET Download Tool is now available on the DATA page. AERONET data may be downloaded for any site, time interval or data type. Several new almucantar retrieval products can be accessed with this tool.
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