Drought Monitoring Using Gravity

The record-breaking drought in Texas, USA, that has fuelled wildfires, decimated crops and forced cattle sales has also reduced groundwater levels in much of the state to their lowest levels in more than 60 years, according to new national maps produced by NASA using data from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (Grace) mission. The map are distributed by the National Drought Mitigation Center at the University of Nebraska-Lincoln.     The latest groundwater map, released at the end of November 2011, shows large patches of maroon over eastern Texas, indicating severely depressed groundwater levels. The maps,... (read more)
2012-01-02 11:18:18

Volcano Monitoring Improvements

Scientists from the USGS work with partners around the world to actively monitor the world’s volcanoes. They use seismometers to detect and monitor very small earthquakes that indicate that magma is rising. They also use GPS to detect changes in the size of the volcano. Volcanoes can be catastrophic. Lava flows and debris avalanches can choke major riverways, destroy bridges and devastate natural areas. The USGS has allocated over USD7 million in American Recovery and Reinvestment Act funds to 15 universities and state agencies nationwide to modernize the equipment in volcano monitoring networks and produce high-resolution maps of high-threat volcanoes.... (read more)
2009-12-28 09:50:38

Monitoring Russian Wildfire Rage

Wildfires in Yakutia, Russia, are being monitored by ScanEx specialists. Over the past week UniScan ground stations have received highly detailed optical images from the SPOT 5 satellite covering one and the same territory twice within an interval of several days. Multi-temporal satellite imagery enables to assess the changes in burnt areas, smoke direction and fire intensity. Data about the geography of possible fires is updated daily on the thematic SFMS service "Kosmosnimki - Fires" (see link below). According to mass media the area of natural fires almost doubled the 2010 figures. If in 2010 the fire blazes covered the... (read more)
2011-05-30 10:49:02

Monitoring the Changing World

More than 200 researchers from over 24 countries congregated at the biennial POLinSAR workshop held at European Space Agency’s (ESA) centre for Earth observation in Italy. The workshop aimed to provide an opportunity to review the advances made in the technique of Synthetic Aperture Radar (SAR) polarimetry which facilitates monitoring geographical characteristics that may influence changes in the world and climate.   SAR allows polarised information to be measured in the signals backscattered from Earth to a satellite sensor. Polarimetric interferometry is achieved by using two polarimetric images, acquired from slightly different angles, to provide information on the 3D structure... (read more)
2011-02-07 10:52:53

Monitoring Tsunami Disaster Areas

Space-based imagery is being used to assess disaster areas and direct relief efforts in areas hit by the tsunamis on 26th December 2004. Canada's RADARSAT-1 satellite previously acquired over 70 archived images of the affected regions and these are being used as baseline information to be compared with newly acquired imagery. Day and night, the satellite provides synoptic coverage up to 500km by 500km per image and collects information through clouds over areas currently experiencing monsoon conditions. This data is used to monitor and map flooding, and to locate areas of standing water creating potential breeding ground for mosquitoes carrying... (read more)
2005-03-07 12:00:00

Monitoring Earth's Magnetic Heartbeat

With more than two years of measurements by ESA’s Swarm satellite trio, changes in the strength of Earth's magnetic field are being mapped in detail. Launched at the end of 2013, Swarm is measuring and untangling the different magnetic signals from Earth’s core, mantle, crust, oceans, ionosphere and magnetosphere – an undertaking that will take several years to complete. Read on to see an animation of new results from the constellation of Swarm satellites showing where the protective field is weakening and strengthening, and importantly how fast these changes are taking place. Although invisible, the magnetic field and electric currents in and around... (read more)
2016-05-11 02:31:18

NASA Monitoring System

NASA scientists have developed a regional visualisation and monitoring system for Central America and the southern Mexican states designed to make NASA Earth observations and predictions freely and readily accessible to anyone with an internet connection. The system’s Spanish acronym is SERVIR, which means 'to serve' and it features a Web-based data archive of maps and satellite imagery, decision-support tools and interactive visualisation capabilities. NASA devised the system in partnership with several other organisations, among them the US Agency for International Development, the World Bank and the Central American Commission for Environment and Development. Scientific and technical collaborators include the... (read more)
2005-03-17 12:00:00

Biodiversity Surveying and Monitoring

Using GIS and GPS in Annapurna Conservation Area of Nepal
GIS and GPS offer enormous potential to improve existing methods of biodiversity surveying and monitoring, supporting sampling design, data collection, visualisation, analysis and data management. The author describes experience gained in the Annapurna Conservation Area of Nepal. Increased human population and industrialisation has caused degradation of wildlife habitat and, with that, biodiversity. The major steps adopted globally for the conservation of biodiversity are the establishment of protected areas, including national parks, wildlife reserves and conservation areas; enforcement of conservation laws and activities aimed at raising awareness. However, the problem still remains critical, especially in the developing countries, where local people... (read more)
2005-07-14 12:00:00

Japanese Forest Monitoring

Volume Estimation and Forest Fire Detection with GIS
Forest fires, illegal logging, rehabilitation of degraded land and watershed management are worldwide problems, monitoring being aided by modern technology including earth observation from space, image processing software, GIS and general IT. The author provides an overview of Japanese initiatives in forest volume estimation and forest fire detection. This article is a translated and modified version of an article earlier published in the July 2004 issue of The Journal of Survey. The sustainable supply of natural, coniferous wood, important for local communities in Japan, requires information on structural forest parameters. However, the Japan Forestry Agency record agency contains such limited... (read more)
2005-05-12 12:00:00

Real-time Deformation Monitoring

Trimble has introduced today two new features for its Trimble 4D Control software solution for monitoring systems. The features include support for geotechnical sensors and a user-friendly Web Module. The solution has been developed for monitoring dams, bridges, buildings, pipeline support piers, large-scale construction and excavation sites, underground and open pit mines, landslides, tunnels, and other structures. The announcement was made at the XIV International Congress of the International Society for Mine Surveying in South Africa.Trimble 4D Control software is a solution for both real-time and postprocessed monitoring. The fully scalable and versatile approach of the system makes it easy... (read more)
2010-09-21 09:24:37
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