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Document - Newsletter
Earth Online Newsletter - 12 May 2023
This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.
News - Thematic area articles
Transforming space data into climate action
ESA’s Earth observation activities are playing a key role in the revitalised global drive to combat climate change.
News - General News
Introducing Mirko Albani
In this short introduction, ESA's Heritage Missions Programme Manager describes what he likes most about ESA's long term archive of satellite mission data and his role in the programme.
Activity - Projects
Dragon 2 Cooperation Programme
The Dragon 2 Programme focussed on the exploitation of ESA, ESA's Third Party Missions and Chinese Earth observation data for science and applications development in land, ocean and atmospheric applications.
News - Data Release news
New reprocessing of datasets celebrates 30 years of ERS
The ERS programme celebrated its 30th anniversary on 17 July. Today, we are still exploiting ERS data and experts continue to work on improving the altimeter, radiometer and SAR data the programme acquired.
News - Infographics
ERS - ESA’s first Earth observation satellites
To mark the 30th anniversary of ERS, we've released a new infographic summarising the mission.
Document - General Reference
Spacelab-in-context.pdf
This document provides an overview of Spacelab, a joint ESA-NASA laboratory that was carried aboard space shuttles from 1981 to 2000.
Tools - Apps
Heritage Missions app for iOS
Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.
Tools - Apps
Heritage Missions app for Android
Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.
Document - General Reference
ARTEMIS-Paving-the-way-for-Europes-future-data-relay-land-mobile-and-Navigation-Services.pdf
This brochure provides an overview of Artemis, ESAs telecommunications satellite.
Document - General Reference
Understanding climate change from space
This document describes ESA's Climate Change Initiative, and how it is intended to contribute towards monitoring and understanding the Earth's climate.
Instrument - Imaging Spectrometers/Radiometers
ATSR
The Along Track Scanning Radiometer (ATSR) on board ERS-1 and ERS-2 mission consisted of two instruments, an Infra-Red Radiometer and a Microwave Sounder.
Data - Data Description
ERS-1/2 ATSR Gridded Surface Temperature [AT1/AT2_NR__2P]
The Gridded Surface Temperature (GST) Product is the Level 2 full resolution geophysical product. The product contains gridded sea-surface temperature images using both nadir and dual view retrieval algorithms. The product includes pixel latitude/longitude positions, X/Y offset and the results of the cloud-clearing/land-flagging. It contains a single measurement data set the content of which is switchable, that is to say, the content of each pixel field will depend on the surface type. Specifically, the contents of the data fields will depend on the setting of the forward and nadir cloud flags and the land flag. The 3rd reprocessing of ATSR data was performed in 2013; the processing updates that have been put in place and the scientific improvements are outlined in full in the User Summary Note for the Third ERS ATSR Reprocessing.
Data - Data Description
ERS-1/2 ATSR Gridded Brightness Temperature/Reflectance [AT1/AT2_TOA_1P]
The Gridded Brightness Temperature/Reflectance (GBTR) product contains top of atmosphere (TOA) brightness temperature (BT) values for the infra-red channels and reflectance values for the visible channels. Values for each channel and for the nadir and forward views occupy separate measurement data sets. Additional MDS contain cloud and land/sea flags and confidence flags for each image pixel. The 3rd reprocessing of ATSR data was performed in 2013; the processing updates that have been put in place and the scientific improvements are outlined in full in the User Summary Note for the Third ERS ATSR Reprocessing.
Data - Data Description
ERS-1/2 ATSR Averaged Surface Temperature [AT1/AT2_AR__2P]
The Averaged Surface Temperature Product (AST) contains averaged geophysical data at two different resolutions, and with respect to two different averaging schemes: measurement data sets at resolutions of 0.5 by 0.5 degrees and 10 by 10 arcmin with respect to a latitude/longitude grid; other data sets contain data averaged over equal area cells of 50 by 50 km and 17 by 17 km aligned with the satellite ground track. Both top-of-atmosphere and surface data sets are provided. The surface temperature data sets provide, for sea cells, nadir and dual view sea surface temperatures, and for land cells, land surface temperature (currently 11 micron BT) and NDVI. Cloud data is also included. No ADS are included in the AST product; auxiliary data is contained within the MDS. The data sets of the AST product are arranged by surface type and resolution. The 3rd reprocessing of ATSR data was performed in 2013; the processing updates that have been put in place and the scientific improvements are outlined in full in the User Summary Note for the Third ERS ATSR Reprocessing.
Mission - Heritage Missions
ERS
The ERS programme was composed of two missions, ERS-1 and ERS-2, which together observed the Earth for 20 years, from 1991 to 2011.
Document - Technical Note
Quality Assessment of CERSAT Altimeter Products
The first results of the CERSAT QIP and QPR quality assessments are presented in this report.
Document - User Guide
DMC-Product-Manual-for-the-DMC-Europe-2007-Coverage
The data products supplied by DMCII are derived from images acquired by the DMC satellites. The primary payload on the DMC satellites is the SLIM-6 imager manufactured by SSTL, UK. This manual will aid users in their analysis of the data products to maximise the information they can extract from the DMC images by providing a thorough description of the data products, the imaging payload, the calibration procedure and the orthorectification process.
Document - General Reference
Global Earth Observation System of Systems (GEOSS) - 10-Year Implementation Plan Reference Document
The Global Earth Observation System of Systems (GEOSS) 10-Year Implementation Plan, endorsed by nearly 60 governments and the European Commission on 16 February 2005, is designed to qualitatively improve our understanding of the Earth system, markedly enhancing global policy- and decision-making abilities to promote the environment, human health, safety, and welfare.
Document - Product Document
Earth Images Catalogue - 13 LEDA
The Earth Images Catalogue (LEDA - on-Line Earthnet Data Availability) is a catalogue of remotely-sensed satellite imagery. It consists of four general series of images: LANDSAT, NOAA/TIROS, Marine Observation Satellites series (MOS), and Nimbus-7. This guide describes the catalogue and how to use it.