Subsidencia

Definition

Subsidence refers to the sinking of the ground due to groundwater removal, mining, dissolution of limestone (e.g. karst, sinkholes), extraction of natural gas, and earthquakes. (IRDR)

UN-SPIDER Regional Support Offices with hazard-specific expertise

Related content on the Knowledge Portal

  • The Copernicus DEM is a Digital Surface Model (DSM) which represents the surface of the Earth including buildings, infrastructure, and vegetation. The Copernicus DEM is provided in 3 different instances. Two worldwide coverages at 90m (GLO-90) and 30m (GLO-30) resolution are openly available to the public for download via the PANDA Catalogue and FTP. A further European coverage (EEA-10) is provided at 10m resolution, but data is restricted to eligible users who meet required access rights.
  • The Copernicus DEM is a Digital Surface Model (DSM) which represents the surface of the Earth including buildings, infrastructure, and vegetation. The Copernicus DEM is provided in 3 different instances. Two worldwide coverages at 90m (GLO-90) and 30m (GLO-30) resolution are openly available to the public for download via the PANDA Catalogue and FTP. A further European coverage (EEA-10) is provided at 10m resolution, but data is restricted to eligible users who meet required access rights.
  • The European Space Agency is organising the 11th International Workshop on “Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR”, Fringe 2021.

    Format

    Fringe 2021 is organised around:

    • Papers and e-posters selected by the Scientific Committee;
    • Invited papers on ESA-funded studies and Sentinel-1 and future ESA SAR mission status reports;
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    The event will take place from 31 May - June 4 2021. No participation fees will be charged.

    Objectives

    • To bring together the global InSAR research and development communities and facilitate international exchange between researchers and research groups; 
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  • The United Nations Office for Outer Space Affairs (UNOOSA) and the National Aeronautics and Space Administration of the United States Government (NASA) signed a landmark Memorandum of Understanding (MoU) on 17 December 2020 pledging cooperation in areas of science and technology to support the peaceful uses of outer space.

    The MoU brings together NASA's wealth of open-source spacecraft data, tools, and expertise and UNOOSA's unique position as the only UN entity dedicated to outer space affairs, to expand global opportunities to leverage the benefits of space. The partners will design capacity-building programmes, particularly for institutions in countries that do not yet have or that are developing space capabilities, to help them access space.

    Together, UNOOSA and NASA will develop ways to leverage the Artemis programme as part of UNOOSA's Access to Space 4 All Initiative, which offers opportunities for international researchers and institutions, especially in...

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    11/01/2021
  • According to the latest issue of an annual disaster statistics report, floods were the deadliest type of disasters in 2019, followed by extreme temperature, while storms affected the highest number of people. Published by the Centre for Research on the Epidemiology of Disasters (CRED), “Natural disasters 2019 - Now is the time to not give up” draws on data recorded in the Emergency Events Database (EM-DAT), which saw the addition of 396 disasters that affected a total of 95 million and caused $103 billion in economic losses around the world. 

    Accounting for 40 per cent of disaster events, Asia suffered the highest impact with 45 per cent of deaths and 74 per cent of total affected. India, which saw cyclone Fani cause destruction in 2019, was the country most...

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    20/08/2020
  • The Digital Earth Africa (DE Africa) Map is a website for map-based access to spatial information. It’s is still being developed by Data61 CSIRO in collaboration with Geoscience Australia. DE Africa is leveraging international Earth Observation (EO) data and science to produce new information and services that benefit African countries. Through translating data into ready-to-use insights, more informed decisions about soil and coastal erosion, agriculture, deforestation, desertification, water quality and changes to human settlements can be made. The data is organized in data-cubes and will be fully available by 2020.
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  • The lowering or sinking of the ground’s surface, referred to as land subsidence, can cause serious damage to infrastructure and private property, and in turn, have an adverse impact on communities, individuals, and the economy. The European Space Agency’s (ESA) Sentinel-1 satellite, part of the Copernicus programme, is being used to monitor cases of land subsidence and contribute to risk assessment and urban development efforts.

    From Sentinel-1 radar data collected over time, ground deformation maps can be created, which provide important insights to local authorities charged with implementing hazard mitigation and management strategies. For example, such maps recently helped authorities...

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    30/05/2019
  • ESA's Earth Observation Thematic Exploitation Platform (TEP) is a browser for satellite imagery and specific products on an environmental topic. The TEP platforms are divided into 7 categories: Coastal; Forstry; Geohazards; Hydrology; Polar; Urban; and Food Security. Each platform is a collaborative, virtual work environment providing access to EO data and the tools, processors and Information and Communication Technology resources required to work with them. TEP aims to bridge the gap between the users and the data and tools.
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Term Parents

UN-SPIDER Regional Support Offices with hazard-specific expertise