earth online
  • All Categories (51)
  • Data (7)
  • News (7)
  • Missions (2)
  • Events (6)
  • Tools (2)
  • Activities (1)
  • Documents (26)
  • Document - General Reference

    prompt photo

    The-Changing-Earth-New-Scientific-Challenges-for-ESAs-Living-Planet-Programme.pdf

    This article is extracted from ESA Bulletin Nr. 129.

  • Document - Proceedings

    prompt photo

    The Use and Applications of ERS in Latin America-Uso y Applicaciones de ERS en America Latina

    Proceedings of the International Seminar on the use and applications of ERS in Latin America, held on 25-29 November 1996 in Vina del Mar, Chile. In English and Spanish.

  • Document - General Reference

    prompt photo

    The Science and Research Elements of ESA Living Planet Programme

    This document presents the plans for the Earth Explorer element of the European Space Agency's 'Living Planet' Programme for Earth Observation.

  • Document - General Reference

    prompt photo

    Taking-natures-pulse-Europes-ERS-satellites.pdf

    This brochure presents an overview of the ERS mission and its applications and benefits.

  • News - Thematic area articles

    prompt photo

    Space helps monitor Earth’s changing biosphere

    Earth’s biosphere is continually changing. Through its pioneering Earth observation missions, ESA is making critical contributions to monitor these changes and their impacts on Earth’s water and carbon cycles.

  • News - Thematic area articles

    prompt photo

    Satellite data boost global understanding of land surface

    Understanding our changing land surface is essential in the study of climate change. Satellites are used to monitor changes to the material that covers Earth’s surface, so-called land cover, such as vegetation and water.

  • News - Data Release news

    prompt photo

    New ERS-2 GOME Level 1 v5.1 dataset available online

    A new GOME Level 1b dataset has been generated for the 16-year mission period bringing relevant quality improvements for the revised calibration approach, compensating aging and instrument degradation, and provide enhanced accessibility.

  • Event - Conference

    prompt photo

    Living Planet Symposium 2019

    ESA's Living Planet Symposia are amongst the biggest Earth observation conferences in the world. Scientists present their latest findings on Earth's environment and climate.

  • Data - EO Sign In Authentication (Open)

    prompt photo

    JERS-1 SAR Level 1 Single Look Complex Image

    The JSA_SLC_1P product is comparable to the ESA SLC/IMS images generated for Envisat ASAR and ERS SAR instruments. It is a slant-range projected complex image in zero-Doppler SAR coordinates. The data is sampled in natural units of time in range and along track, with the range pixel spacing corresponding to the reciprocal of the platform ADC rate and the along track spacing to the reciprocal of the PRF. Data is processed to an unweighted Doppler bandwidth of 1000Hz, without sidelobe reduction. The product is suitable for interferometric, calibration and quality analysis applications. Data acquired by ESA ground stations. Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

  • Data - EO Sign In Authentication (Open)

    prompt photo

    JERS-1 SAR Level 1 Precision Image

    The JSA_PRI_1P product is comparable to the ESA PRI/IMP images generated for Envisat ASAR and ERS SAR instruments. It is a ground range projected detected image in zero-Doppler SAR coordinates, with a 12.5 metre pixel spacing. It has four overlapping looks in Doppler covering a total bandwidth of 1000Hz, with each look covering a 300Hz bandwidth. Sidelobe reduction is applied to achieve a nominal PSLR of less than -21dB. The image is not geocoded, and terrain distortion (foreshortening and layover) has not been removed. Data acquired by ESA ground stations. Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

  • Data - EO Sign In Authentication (Open)

    prompt photo

    JERS-1 OPS (Optical Sensor) Very Near Infrared Radiometer (VNIR) System Corrected Products level 1

    The JERS-1 Optical System (OPS) is composed of a Very Near Infrared Radiometer (VNIR) and a Short Wave Infrared Radiometer (SWIR). The instrument has 8 observable spectral bands from visible to short wave infrared. Data acquired by ESA ground stations The JERS-1 OPS products are available in GeoTIFF format. These products are available only for the VNIR sensor. All four bands are corrected. The correction consists in a vertical and horizontal destriping, the radiometry values are expanded from the range [0.63] to the range [0.255]. No geometrical correction is applied on level 1. The pixel size of approximately 18 x 24.2 metres for raw data is newly dimensioned to 18 x 18 metres for System Corrected data using a cubic convolution algorithm. Disclaimer: Cloud coverage for JERS OPS products has not been computed using an algorithm. The cloud cover assignment was performed manually by operators at the acquisition stations. Due to missing attitude information, the Nadir looking band (band 3) and the corresponding forward looking band (band 4) are not well coregistered, resulting in some accuracy limitations. The quality control was not performed systematically for each frame. A subset of the entire JERS Optical dataset was selected and manually checked. As a result of this, users may occasionally encounter issues with some of the individual products. Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

  • Mission - Heritage Missions

    prompt photo

    JERS-1

    The overall objectives of JERS-1 (Japanese Earth Resources Satellite) were the generation of global data sets with SAR and OPS sensors aimed at surveying resources, establishing an integrated Earth observation system

  • Document - Proceedings

    prompt photo

    Inter-comparison-of-Large-Scale-Optical-and-Infrared-Sensors.pdf

    Proceedings of the workshop held from 12-14 October 2004 at ESA-ESTEC (Noordwijk, The Netherlands). The objective of the workshop was to present and exchange experiences and knowledge from work on inter-comparing large scale optical sensors at different product levels. This includes the evaluation and reduction of calibration bias and the validation of geophysical product uncertainties.

  • Document - Proceedings

    prompt photo

    Image Processing Techniques-Tecnicas de Procesamiento de Imagenes

    Proceedings of the first Latino-American Seminar on Radar Remote Sensing, held on 2-4 December 1996 in Buenos Aires, Argentina. In English and Spanish.

  • Document - Proceedings

    prompt photo

    Image Processing Techniques

    Proceedings of the second Latino-American Seminar on Radar Remote Sensing held on 11-12 September 1998 in Santos, San Paulo, Brazil.

  • Tools - Apps

    prompt photo

    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

    prompt photo

    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.

  • News - Success Stories

    prompt photo

    Heritage data trains neural networks to detect urban sprawl

    Using data from non-operational ESA remote sensing missions, researchers have trained a network of artificial neurons to recognise how cities change over decades. They hope this will help city planners reduce the impact that urbanisation has on the environment.

  • News - Thematic area articles

    prompt photo

    Global understanding of Earth's land surfaces greatly boosted by satellite data

    ESA perform land surface monitoring with a range of instruments onboard satellites acquiring optical and radar data. Collections of data from these missions are freely available for research purposes.

  • Document - General Reference

    prompt photo

    Further-Achievements-of-the-ERS-Missions.pdf

    This publication shows how with time the various uses of ERS data are developing and consolidating in key areas of science and economic exploitation.