Remote Sensing

Order of the National Green Tribunal regarding pollution caused by Talcher Coalfield under Mahanadi Coalfields Limited, Angul district, Odisha, 06/03/2024

Order of the National Green Tribunal (Eastern Zone Bench, Kolkata) in the matter of Sridhar Samal Vs State of Odisha & Others dated 06/03/2024. The matter related to pollution caused by Talcher Coalfield under Mahanadi Coalfields Limited in the course of its operation. It was said that on a daily …

Sethusamudram Shipping Canal Project and the unconsidered high risk factors: Can it withstand them?

Sethusamudram Shipping Canal Project, when completed, will transform parts of the southern coromandal coast qualitatively. Since historical times, this portion of the coast (Palk Bay, Adam’s Bridge) is used only to fleets of small crafts involved in coastal trading and fishing. Sethu Canal will transform this into a coast that …

Coastal erosion and habitat loss along the Godavari delta front – a fallout of dam construction

Analysis of multi-date satellite sensor data and maps indicated loss of 1836 ha of land during 1976–2001 along the Godavari deltaic coast resulting in displacement of coastal communities and mangrove destruction. Decrease in sediment loads from an annual average of 145.26 million tons in 1971–79 to 56.76 million tons during …

Kolleru lake is vanishing a revelation through digital processing of IRS-1D LISS-III sensor data

Digital processing of the IRS-1D LISS-III image revealed a highly degraded state of the Kolleru lake. Among the several techniques tried, image enhancement through automatic log residuals method clearly indicated that about 42% of the 245 km2 lake area was encroached for aquaculture and 8.5% more area was occupied for …

Tracking India s wealth

India has come out with maps of its biodiversity-rich regions, one of the first countries to do so in the world. It was the fruit of a five-year project, jointly undertaken by the Department of Biotechnology (dbt) and the Department of Space (dos), which began in 1997. The survey covered …

Geomorphological manifestations of the flood hazard: A remote sensing based approach

Flood hazard is one of the most severe problems in the Himalayan river basins. Although floods are essentially hydrological phenomenon, the uneven distribution of floods in the river basin highlights the control of geomorphological and geological factors. A proper understanding of these factors is critical for a successful flood management …

Archaeology helps to unlearn too

The March 5 order of the Allahabad High Court, directing a 12-member Archaeological Survey of India (asi) team to excavate a 30 m x 30 m area at the disputed site at Ayodhya, has led to a renewed interest in archaeology. The order is based on explorations carried out by …

Biodiversity characterisation at landscape level in Andaman & Nicobar islands using satellite remote sensing and GIS

Andaman and Nicobar Islands are one of the most diverse but fragile Island landscapes where developmental activities have caused serious implications, resulting in loss of habitat and subsequent extinction of species. This study seeks to identify areas with various levels of biological richness using appropriate satellite remote sensing data, human …

Saraswati underground

November 15Legend has it that the beautiful goddess Saraswati sprung from the forehead of her father Brahma, the god of creation. It is said that as soon as Brahma looked at her beauty, he was filled with desire for her. Unhappy with the amorous attentions he bestowed upon her, she …

A bridge too far fetched

Non-resident Indian websites caused ripples when they claimed that a 30-kilometre-long bridge of shoals, across the Palk Strait between India and Sri Lanka whose images were captured by the National Aeronautic and Space Administration (nasa), bore an uncanny resemblance to a structure described in the epic Ramayana. The us agency …

Joint forest management in India and its ecological impacts

Ecological impact of joint forest management (JFM) in India was assessed using the studies undertaken at national, state and forest division levels. It was found that there are very few studies that have specifically addressed the ecological aspects under JFM. The study noted that there are significant strides made in …

Drought monitoring: Untapped data

Droughts, an integral part of India's geophysical profile, have registered a steep rise in frequency and ferocity during the past 50 years. To its credit, the scientific community has kept pace by conducting research that can minimise the impact of dry spells. But the government has done precious little to …

Scrutinising disasters

Flood Studies in India brings to fore several aspects of this natural disaster that are not yet conventional wisdom in policy circles. The book looks at floods from a variety of expertise areas, such as civil engineering, meteorology, hydrology, remote sensing, geomorphology and geography - the only way to do …

Satellite Maps Forests

The hills are alive with tradition. One method killsslashes and burnsthe other is healingand sustains. In the northeast hills of India are found medicinal plants that are treasured for their life giving potential. Tribals use these plants to kill pain and treat diseases. On these hillspeople also practice the age-old …

Continental melting

Antarctica seems to be melting and contributing to the slow rise of the ocean levels, scientists from the Jet Propulsion Laboratory of the National Aeronautics and Space Administration (NASA) report. Using two sets of radar data from the European Remote Sensing Satellite, the scientists found that a large amount of …

Biodiversity characterisation at landscape level in North-East India using satellite remote sensing and G

Biodiversity characterisation at landcape level was carried out using Indian remote sensing satellite data in North Eastern region of India. This study presents the results of the project undertaken to build a national database on biodiversity at landscape level. This is important in order to check the alarming biodiversity loss …

Biodiversity characterisation at landscape level in Western himalayas India using satellite remote sensing and GIS

Biodiversity characterisation at landscape level has been carried out using Indian remote sensing satellite data in Western himalayas of India. This study presents the results of the project undertaken to build national database on biodiversity at landscape level.

Biodiversity characterisation at landscape level in Western Ghats India using satellite remote sensing and GIS

Biodiversity characterisation at landscape level has been carried out using Indian remote sensing satellite data in Western Ghats of India. This study presents the results of the project undertaken to build national database on biodiversity at landscape level.

Meltdown

Latest NASA (National Aeronautics and Space Administration) satellite maps reveal that most of the world's glaciers are shrinking. Rick Wessels of the US Geographical Survey, based in Arizona, compared thousands of satellite images to aerial photographs dating back 20 years and found almost every mountain glacier in Patagonia, the Himalayas, …

MONITORING FOREST

Pakistan plans to set up a Geographical Information System (GIS) to monitor changes in the forest cover in the country. A ban on the commercial harvesting of forests will also be lifted for one year and progress will be reviewed through the federal forestry board. The forest management centre in …

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