drought

UNDRR and UNCCD launch the Special Report on Drought 2021

Special Report on Drought 2021

Droughts have extensive and profound repercussions on populations, livelihoods, ecosystems, and economies. The most vulnerable people are unduly affected by their financial consequences. Although droughts affect millions, lead to food shortages, poverty, and inequality, their immense and widespread effects are often underreported.

Read full story: 

Special Report on Drought 2021

Publishing Date: 

Vie, 18/06/2021 - 10:27

Aplicación de datos del mes: Las precipitaciones

Mediciones de las precipitaciones del ciclón Pam que partió de Vanuatu el 17 de marzo de 2015. Imagen: NASA.

¿Para qué se usan los datos de precipitaciones?

Las inundaciones, los corrimientos de tierra y las sequías son amenazas naturales desencadenadas por el exceso o escasez de precipitaciones. El monitoreo de las precipitaciones es importante para prever esos desastres y posibilitar que las autoridades tomen medidas lo antes posible. De este modo, los datos de precipitaciones (junto con otros datos complementarios) ayudan a prevenir que las amenazas naturales se conviertan en desastres.

Short title: 

Aplicación de datos del mes: Precipitación
Spanish

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Enlaces relacionados: 

GPM data
TRMM data

Aplicación de datos del mes: Mapas de cobertura del suelo

Mapa de la cubierta terrestre mundial a partir de 2015. Imagen: ESA.

¿Para qué se usan los mapas de cobertura del suelo?

Short title: 

Aplicación de datos del mes: Mapas de cobertura del suelo
Spanish
La información sobre la cobertura del suelo es importante para muchas aplicaciones, como el modelado de inundaciones, la observación de sequías agrícolas, el modelado del cambio climático y el monitoreo de cambios ambientales, incluida la fenología de la vegetación, las inundaciones, la ocurrencia de incendios y el monitoreo de las emisiones de carbono debido a la deforestación y la degradación de los bosques.

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Enlaces relacionados: 

Access to global land cover maps
Access to land cover maps (global and national)
Recommended practice on flood hazard mapping using land cover information

New NASA sensor to support drought and wildfire prediction

Major disasters such as droughts and wildfires are driven by the dryness of vegetation. To enhance the monitoring of plant water stress, NASA launched and installed a new sensor on the International Space Station. ECOSTRESS (ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station) allows identifying loss of water in leaves- even before they show visible signs of trouble.

Read full story: 

Detecting Invisible Plant Stress

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Publishing Date: 

jue, 14/11/2019 - 12:20

Getting Started with MODIS Version 6- Vegetation Indices Data (Part1)

Undefined

This short tutorial is the first video (Part 1) of the “Getting Started with MODIS Version 6 -Vegetation Indices Data” video series.

This video focuses on the National Aeronautics and Space Administration’s (NASA) Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Version 6 Vegetation Indices data distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC).

Latitud: 

0

Longitud: 

0

Free tagging: 

Is a certificate Issued?: 

0

Fecha: 

09/08/2019

Fecha límite de inscripción: 

Vie, 09/08/2019

Organizadores del evento: 

NASA

Co-organizadores: 

United States Geological Survey (USGS)

Sitio web: 

Getting Started with MODIS Version 6- Vegetation Indices Data (Part1)

Idioma del evento: 

1

Standardized Vegetation Index (SVI)

The Standardized Vegetation Index (SVI) provides information about the relative vegetation condition compared to the years being analyzed. As the state of vegetation is influenced by weather conditions the SVI can also be utilized as a drought-index and for regular drought monitoring to facilitate the early identification of the slow-onset natural hazard. The SVI is based on satellite Vegetation Indices (VI) such as the Normalized Difference Vegetation Index (NDVI) or Enhanced Vegetation Index (EVI) indicating the estimated vegetation condition.

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NASA: Advanced Webinar: Techniques for Wildfire Detection and Monitoring

This is event is available for participation on an ongoing basis
Undefined

NASA's Applied Remote Sensing Training Department is offering a new webinar on wildfire detection on July 19th, 2018 from 18:00-20:00 EDT (UTC-4). Following the event the webinar will be available as a recording. 

In light of increasing drought and wild fire frequencies, the first session describes key aspects of satellite based wildfire monitoring and introduces a new QGIS plugin: "QGIS Fire Mapping Tool (FMT)". The second session gives an overview of the Global Wildfire Information System (GWIS) and demonstrates how to use the GWIS viewer.  

Latitud: 

0

Longitud: 

0

Free tagging: 

Fecha: 

19/07/2018

Fecha límite de inscripción: 

jue, 19/07/2018

Organizadores del evento: 

NASA Applied Remote Sensing Training Department 

Sitio web: 

NASA: Advanced Webinar: Techniques for Wildfire Detection and Monitoring

Idioma del evento: 

1

Stakeholder Workshop on Earth observation-based information products for drought risk on a national basis

This is event is available for participation on an ongoing basis
Undefined

The Stakeholder Workshop on Earth observation-based information products for drought risk on a national basis (EviDENz) occurred from 4 to 8 June 2018 in Pretoria and Eastern Cape, South Africa.

 

Latitud: 

-32

Longitud: 

26

Free tagging: 

Fecha: 

04/06/2018 to 08/06/2018

Fecha límite de inscripción: 

lun, 04/06/2018

Ciudad: 

Pretoria and Eastern Cape

País: 

  • South Africa

Organizadores del evento: 

DiMTEC, University of the Free State (UFS), South Africa, ZFL, University of Bonn, UNU-EHS, UNOOSA / UN-SPIDER

Sitio web: 

Stakeholder Workshop on Earth observation-based information products for drought risk on a national basis

Idioma del evento: 

1

Remote Sensing of Drought

This is event is available for participation on an ongoing basis
Undefined

Prolonged drought can result in economic, environmental, and health-related impacts. In this webinar, participants will learn how to monitor drought conditions and assess impacts on the ecosystem using precipitation, soil moisture, and vegetation data. The training will provide an overview of drought classification, as well as an introduction to web-based tools for drought monitoring and visualization. Lectures will be followed by hands-on demonstrations of data access and visualization.
Learning Objectives:
By the end of the training, participants will be able to:

Latitud: 

0

Longitud: 

0

Free tagging: 

Is a certificate Issued?: 

0

Fecha: 

12/07/2017 to 19/07/2017

Fecha límite de inscripción: 

mar, 11/07/2017

Organizadores del evento: 

NASA ARSET

Sitio web: 

Advanced Webinar: Remote Sensing of Drought

Idioma del evento: 

1

Expert mission in Salvador 2015

The mission allowed UN-SPIDER to re-visit El Salvador after the technical advisory mission (TAM) conducted in 2014 and to follow-up on on-going efforts. 

Fechas: 

jue, 09/07/2015 to Vie, 10/07/2015

Institución Anfitriona: 

Ministry of Foreign Affairs of El Salvador

País/región: 

Amenazas Principales: 

Mission Expert: 

Juan Carlos Villagran

Perfil de la Misión: 

The mission allowed UN-SPIDER to re-visit El Salvador after the technical advisory mission (TAM) conducted in 2014 and to follow-up on on-going efforts. The mission was used to provide more than 350 maps of the VCI and the SVI (drought indexes) to the Directorate of Civil Protection and to the Environmental Observatory of the Ministry of Environment and Natural Resources of El Salvador. Another aim was the participation in the meeting at the Ministry of Foreign Affairs for starting the consolidation of the inter-institutional technical team and to raise awareness regarding UN-SPIDER and the SEWS-D Project to relevant institutions in the country. 

Mission Outcome: 

The mission was used to distribute the updated VCI and SVI maps and to promote the establishment of the inter-institutional team and to provide continuity to the SEWS-D project. 

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