earth online
  • All Categories (3028)
  • Data (14)
  • News (30)
  • Missions (6)
  • Events (21)
  • Tools (11)
  • Activities (11)
  • Campaigns (2)
  • Documents (2933)
  • Document - General Reference

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    WATS - Water Vapour and Temperature in the Troposphere and Stratosphere.pdf

    This report describes the WATS mission, one of the candidate Earth Explorers in the second cycle in 2001.

  • Document - General Reference

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    warp5-grid.pdf

    SCIRoCCo WARP 5 Grid

  • Document - Technical Note

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    WALES - Water Vapour Lidar Experiment in Space

    This report describes the WALES mission, one of the candidate Earth Explorers in the second cycle in 2001.

  • Document - Product Cal/Val Plan/Report

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    Visible Channel Long Term Drift Analysis Using Desert Targets

    Visible Channel Long Term Drift Analysis Using Desert Targets. The stability of AATSR visible channel calibrations have been measured using data from stable desert targets. The calibration drift rates obtained from the time-series are less than 3.5% per year and comparable to those measured for ATSR-2. Application of the drift correction to AATSR L1B images is discussed.

  • Document - Software Verification Plan/Report

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    Verification of the BUFR Form of the AATSR Meteo Product

    Verification of the BUFR Form of the AATSR Meteo Product. This document describes the verification applied to the AATSR Meteo product (ATS_MET_AX) in its BUFR form

  • Document - Product Cal/Val Plan/Report

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    Validation Report following the 3rd MERIS data reprocessing

    This document prepared by the MERIS Quality Working Group (QWG) corresponds to the Validation Report following the 3rd MERIS data reprocessing. It aims at qualifying and quantifying the accuracy of the MERIS L2 products generated with the version 8.0 of MERIS Ground Segment prototype (MEGS), delivered to the whole community through the ODESA software (http://earth.eo.esa.int/odesa/). It is equivalent to version 6.0 of the Instrument Processing Facilities (IPF) at ESRIN.

  • Activity - Cal/Val activities

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    UV nadir viewing galleries

    Atmospheric chemistry nadir observation from space now spans nearly forty years. The early UVN (UV nadir missions) mainly focused on measuring ozone.

  • Document - Software Verification Plan/Report

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    User Note on Meteo Product Comparisons Report

  • Document - User Guide

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    User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

    This document provides a guide for users of (A)ATSR 4th reprocessing products, giving easily viewed format details, highlighting differences from previous reprocessed products, noting technical features inherent in the products, and giving notification of remaining Open Issues.User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

  • Document - Technical Note

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    Update-on-AATSR-Visible-Channel-Long-Term-Trends.pdf

    This document contains calibration guidance for the AATSR instrument.

  • Document - General Reference

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    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.

  • News - Thematic area articles

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    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 - Thematic area articles

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    Tracking the world’s forests from space

    As human activities continue to threaten the planet’s forests, data delivered by satellites are boosting global efforts to conserve these crucial natural resources.

  • Document - General Reference

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    Towards More Efficient Use of Radar-Altimeter Data

    Twenty years ago, experimental altimeters on NASA's Skylab and Geos-3 were already demonstrating the potential of such instrumentation. This led in turn to the development and launch by NASA in July 1978 of the Seasat oceanographic satellite mission. Both Geos-3 and Seasat were very successful in their pioneering missions, but were limited somewhat by poor coverage in the case of Geos-3 and an abnormally short mission duration in Seasat's case.

  • Activity - Projects

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    TOLEOS

    The TOLEOS (Thermosphere Observations from Low-Earth Orbiting Satellites) project will produce thermosphere mass density observations from the accelerometer measurements of the GRACE, GRACE-FO, and CHAMP satellites.

  • Document - General Reference

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    TIGER Initiative - Looking After Water in Africa

    This brochure presents images from the second TIGER Workshop, held in Pretoria from 08 to 10 November 2004. The images show locations in Africa acquired by Meteosat-8, Envisat's ASAR and MERIS instruments and Proba-1's HRC instrument.