24 conjuntos de datos encontrados

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  • Atlas de sequias - Argentina

    This dataset present the Drought Atlas for Argentina, developed as part of the Latin American and Caribbean Drought Atlas. The maps show the minimum (and maximum) precipitation...

    This dataset present the Drought Atlas for Argentina, developed as part of the Latin American and Caribbean Drought Atlas. The maps show the minimum (and maximum) precipitation for different return periods (in years) and the frequency of drought occurrences (precipitation deficits with respect to the normal annual precipitation) for Argentina.

  • Mapas de idoneidad para la recarga gestionada de acuíferos (MAR), Costa Rica

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en...

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en operación. El Inventario Global de MAR incluye información sobre el nombre del sitio, el tipo de MAR, el año de implementación del esquema, la fuente del agua de infiltración, el uso final del agua extraída, así como los principales objetivos del proyecto.

    Este conjunto de datos presenta un mapa de idoneidad para la MAR en Costa Rica, desarrollado por Bonilla et al. (2016). El estudio clasifica las áreas adecuadas para la MAR mediante métodos de dispersión, basándose en la aptitud hidrogeológica, la pendiente del terreno, la textura del suelo y la densidad de la red de drenaje. El conjunto de datos proporciona información geoespacial que respalda la planificación de la recarga de acuíferos, la gestión de los recursos hídricos y la adaptación al cambio climático en Costa Rica. Forma parte de la colección global de evaluaciones de idoneidad para MAR compilada por IGRAC.

    Si desea contribuir con datos al Portal MAR, por favor contáctenos en info@un-igrac.org.

  • Mapas de idoneidad para la recarga gestionada de acuíferos (MAR), Cuenca del...

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en...

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en operación. El Inventario Global de MAR incluye información sobre el nombre del sitio, el tipo de MAR, el año de implementación del esquema, la fuente del agua de infiltración, el uso final del agua extraída, así como los principales objetivos del proyecto.

    Este conjunto de datos presenta un mapa de idoneidad para la MAR en la cuenca del río Ganges, desarrollado por Brindha y Pavelic (2016). El estudio identifica cuencas prioritarias para mitigar los impactos de inundaciones y sequías mediante la gestión conjunta de aguas superficiales y subterráneas bajo el enfoque Underground Taming of Floods for Irrigation (UTFI). El análisis abarca la cuenca transfronteriza del Ganges que se extiende por Bangladesh, China, India y Nepal. El conjunto de datos proporciona información geoespacial que respalda la planificación de la mitigación de inundaciones, las estrategias de recarga de acuíferos y la gestión integrada de los recursos hídricos en Asia meridional. Forma parte de la colección global de evaluaciones de idoneidad para MAR compilada por IGRAC.

    Si desea contribuir con datos al Portal MAR, por favor contáctenos en info@un-igrac.org.

  • Mapas de idoneidad para la recarga gestionada de acuíferos (MAR), Norte de Australia

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en...

    El Portal MAR contiene el Inventario Global de MAR, un inventario de más de 1200 sitios donde la recarga gestionada de acuíferos (MAR) se ha implementado o se encuentra en operación. El Inventario Global de MAR incluye información sobre el nombre del sitio, el tipo de MAR, el año de implementación del esquema, la fuente del agua de infiltración, el uso final del agua extraída, así como los principales objetivos del proyecto.

    Este conjunto de datos presenta un mapa de idoneidad para la MAR en el norte de Australia, desarrollado por la CSIRO (2018). El estudio evalúa las oportunidades para la recarga gestionada de acuíferos en acuíferos superficiales con el fin de apoyar el desarrollo agrícola en las cuencas de Fitzroy, Darwin y Mitchell. El análisis se basa en las características de la geología superficial, la topografía y las estimaciones modeladas del espesor del regolito y la permeabilidad del suelo. El conjunto de datos proporciona información geoespacial que puede apoyar la planificación sostenible de los recursos hídricos y la gestión del agua agrícola en el norte de Australia. Forma parte de la colección global de evaluaciones de idoneidad para MAR compilada por IGRAC.

    Si desea contribuir con datos al Portal MAR, por favor contáctenos en info@un-igrac.org.

  • Satellite detected water extents in Sindh, Balochistan and Punjab Provinces,...

    This map illustrates the satellite-detected water extent in Sindh, Balochistan, and Punjab Provinces, Pakistan, as observed from Sentinel-2 satellite images acquired on 31 July...

    This map illustrates the satellite-detected water extent in Sindh, Balochistan, and Punjab Provinces, Pakistan, as observed from Sentinel-2 satellite images acquired on 31 July 2025 at 13:02 local time (08:02 UTC). Within the analyzed area of approximately 83,000 km², about 6,300 km² of land appears to be affected by floodwaters. The floodwater extent appears to have increased by approximately 1,300 km² since 11 July 2025. Based on WorldPop population data and the flood extent, approximately 2.3 million people are potentially exposed or living close to the flooded areas.

  • Flooding in Pakistan (August, 2010)

    This layer shows NASA's Earth Observing-1 (EO-1) satellite images of Pakistan on August 11, 2010, after two weeks of flooding had devastated the country.By early August 2010,...

    This layer shows NASA's Earth Observing-1 (EO-1) satellite images of Pakistan on August 11, 2010, after two weeks of flooding had devastated the country.By early August 2010, two weeks of devastating monsoon rains had transformed the landscape of Pakistan, pushing rivers over their banks, inundating villages, washing away bridges and roads, destroying crops, and killing livestock. By August 12, 2010, more than 1,600 people had perished, according to news reports, and the United Nations Office for the Coordination of Humanitarian Affairs (OCHA) estimated that more than 14 million people had been affected in some way.For more information, visit NASA's Earth Observatory page: http://earthobservatory.nasa.gov/IOTD/view.php?id=45200

  • Flooding in Ayutthaya, Thailand (October 2011)

    This layer shows NASA's Earth Observing-1 (EO-1) satellite images of Ayutthaya (Thailand) flood on October 23, 2011. Flooding forced the closure of manufacturing plants in...

    This layer shows NASA's Earth Observing-1 (EO-1) satellite images of Ayutthaya (Thailand) flood on October 23, 2011. Flooding forced the closure of manufacturing plants in Ayutthaya, according to news reports. The city is a UNESCO World Heritage site. On 12 October 2011, UNESCO Bangkok announced a planned assessment of flood damage to Ayutthaya, requested by the government of Thailand.For more information, visit NASA's Earth Observatory page: http://earthobservatory.nasa.gov/IOTD/view.php?id=76234

  • Groundwater storage in Africa

    This 5 km resolution grid presents groundwater storage in Africa (in mm). This parameter was estimated by combining the saturated aquifer thickness and effective porosity of...

    This 5 km resolution grid presents groundwater storage in Africa (in mm). This parameter was estimated by combining the saturated aquifer thickness and effective porosity of aquifers across Africa. For each aquifer flow/storage type an effective porosity range was assigned based on a series of studies across Africa and surrogates in other parts of the world. Groundwater storage is given in millimeters. Detailed description of the methodology, and a full list of data sources used to develop the layer can be found in the peer-reviewed paper available here: http://iopscience.iop.org/article/10.1088/1748-9326/7/2/024009/pdfThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/africanGroundwater/mapsDownload.html

  • Groundwater storage change across the Indo-Gangetic basin

    This 1 km resolution grid shows the estimated mean annual groundwater storage change (in cm) across the aquifer based on annual groundwater-level change and specific yield....

    This 1 km resolution grid shows the estimated mean annual groundwater storage change (in cm) across the aquifer based on annual groundwater-level change and specific yield. Methodology and a full list of data sources used can be found in the peer-reviewed paper: https://www.nature.com/articles/ngeo2791.epdf?author_access_token=_2Z_fJZxRkSVmgVJ7xHTVdRgN0jAjWel9jnR3ZoTv0O07GfIlzqIVm44UgFPb1r62_FUJLao4zkJSzYpv-4gIWJorRXEpgh4iarB8vlRNY_tGV_18CAf2j-_GnADYbdpThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/SEAsiaGroundwater/mapsDownload.html

  • Humedad relativa en la región del Trifinio

    Humedad relativa (%) en la región del Trifinio.Información extraida de la publicación: Catálogo de Objetos Geográficos, Proyecto Gobernanza de las aguas subterráneas en los...

    Humedad relativa (%) en la región del Trifinio.Información extraida de la publicación: Catálogo de Objetos Geográficos, Proyecto Gobernanza de las aguas subterráneas en los acuíferos transfronterizos (GGRETA por sus siglas en ingles). UNESCO-PHI, UICN, Agencia Suiza para el Desarrollo y la Cooperación COSUDE. Publicación: Septiembre 2014Para más información visite el Geoportal del Plan Trifinio: http://www.geoportaltrifinio.net/

  • Groundwater productivity in Africa

    This 5 km resolution grid indicates what borehole yields (in l/s) can reasonably be expected in different hydrogeological units. The ranges indicate the approximate...

    This 5 km resolution grid indicates what borehole yields (in l/s) can reasonably be expected in different hydrogeological units. The ranges indicate the approximate interquartile range of the yield of boreholes that have been sited and drilled using appropriate techniques. Groundwater productivity is given in liters per second.Detailed description of the methodology, and a full list of data sources used to develop the layer can be found in the peer-reviewed paper available here: http://iopscience.iop.org/article/10.1088/1748-9326/7/2/024009/pdf The raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/africanGroundwater/mapsDownload.html

  • Landslides and Landslide Susceptibility Maps - Chimanimani and Chipinge, Zimbabwe

    These datasets and maps present the landslides observed and landslide susceptibility of the Chimanimani and Chipinge Districts of Zimbabwe. The maps provide a qualitative...

    These datasets and maps present the landslides observed and landslide susceptibility of the Chimanimani and Chipinge Districts of Zimbabwe. The maps provide a qualitative assessment of the likelihood of a landslide occurrence in an area depend on the terrain condition, and knowledge of prior landslides in the region. These maps have been prepared with the recording of 20 000 landslides, that have been identified in the region, particularly those as a result of the Cyclone Idai that occurred in 2019.

  • Groundwater salinity across the Indo-Gangetic basin

    This 1 km resolution grid shows salinity measured as total dissolved solids (TDS, in mg/l) in the groundwater across the Indo-Gangetic basin. Methodology and a full list of data...

    This 1 km resolution grid shows salinity measured as total dissolved solids (TDS, in mg/l) in the groundwater across the Indo-Gangetic basin. Methodology and a full list of data sources used can be found in the peer-reviewed paper: https://www.nature.com/articles/ngeo2791.epdf?author_access_token=_2Z_fJZxRkSVmgVJ7xHTVdRgN0jAjWel9jnR3ZoTv0O07GfIlzqIVm44UgFPb1r62_FUJLao4zkJSzYpv-4gIWJorRXEpgh4iarB8vlRNY_tGV_18CAf2j-_GnADYbdpThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/SEAsiaGroundwater/mapsDownload.html

  • Groundwater pollution risk in Africa (2016)

    Groundwater pollution risk is determined both by the intrinsic vulnerability of the aquifer and the existence of potentially polluting activities at the soil surface. This...

    Groundwater pollution risk is determined both by the intrinsic vulnerability of the aquifer and the existence of potentially polluting activities at the soil surface. This raster has a resolution of 15*15 km. It was generated by combining a groundwater vulnerability model (based on the DRASTIC method) with land use/land cover (from the GlobCoverdatat set) using an additive model. For more information, visit: http://www.sciencedirect.com/science/article/pii/S0048969715311189 test

  • Groundwater level trends across the Indo-Gangetic basin

    This 1 km resolution grid shows mean annual change in water-table levels across the aquifer during the period 2000 to 2010 in meters per year. Methodology and a full list of...

    This 1 km resolution grid shows mean annual change in water-table levels across the aquifer during the period 2000 to 2010 in meters per year. Methodology and a full list of data sources used can be found in the peer-reviewed paper: https://www.nature.com/articles/ngeo2791.epdf?author_access_token=_2Z_fJZxRkSVmgVJ7xHTVdRgN0jAjWel9jnR3ZoTv0O07GfIlzqIVm44UgFPb1r62_FUJLao4zkJSzYpv-4gIWJorRXEpgh4iarB8vlRNY_tGV_18CAf2j-_GnADYbdpThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/SEAsiaGroundwater/mapsDownload.html

  • Groundwater abstraction across the Indo-Gangetic basin (2010)

    This 1 km resolution grid shows the estimated mean annual groundwater abstraction in millimeters across the Indo-Gangetic basin based on data from 2010.Methodology and a full...

    This 1 km resolution grid shows the estimated mean annual groundwater abstraction in millimeters across the Indo-Gangetic basin based on data from 2010.Methodology and a full list of data sources used can be found in the peer-reviewed paper: https://www.nature.com/articles/ngeo2791.epdf?author_access_token=_2Z_fJZxRkSVmgVJ7xHTVdRgN0jAjWel9jnR3ZoTv0O07GfIlzqIVm44UgFPb1r62_FUJLao4zkJSzYpv-4gIWJorRXEpgh4iarB8vlRNY_tGV_18CAf2j-_GnADYbdpThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/SEAsiaGroundwater/mapsDownload.html

  • Elevación de la región del Trifinio

    Elevación de la región del Trifinio.Información extraida de la publicación: Catálogo de Objetos Geográficos, Proyecto Gobernanza de las aguas subterráneas en los acuíferos...

    Elevación de la región del Trifinio.Información extraida de la publicación: Catálogo de Objetos Geográficos, Proyecto Gobernanza de las aguas subterráneas en los acuíferos transfronterizos (GGRETA por sus siglas en ingles). UNESCO-PHI, UICN, Agencia Suiza para el Desarrollo y la Cooperación COSUDE. Publicación: Septiembre 2014Para más información visite el Geoportal del Plan Trifinio: http://www.geoportaltrifinio.net/

  • Global estimated risk index for flood hazard

    This layer presents an estimation of the global risk induced by flood hazard. Unit is estimated risk index from 1 (low) to 5 (extreme). For more information, visit the Global...

    This layer presents an estimation of the global risk induced by flood hazard. Unit is estimated risk index from 1 (low) to 5 (extreme). For more information, visit the Global Risk Data Platform: http://preview.grid.unep.ch/index.php?preview=data&events=floods&evcat=5&lang=eng

  • Economical exposition to surges from tropical cyclones (1975–2007)

    This layer presents an estimation of the annual economical exposition to tropical cyclone surges. (Don't forget to zoom on the coast!)Unit is expected average annual GDP (2010...

    This layer presents an estimation of the annual economical exposition to tropical cyclone surges. (Don't forget to zoom on the coast!)Unit is expected average annual GDP (2010 as the year of reference) exposed in (US $, year 2000 equivalent).For more information, visit the Global Risk Data Platform: http://preview.grid.unep.ch/index.php?preview=data&events=surges&evcat=4&lang=eng

  • additional testing tiff dataset

    This dataset has no description

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