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 …

Bureaucracy on the beach

Orissa government looks for ways to stall beach erosion, does not recognize climate change The rising sea level has alarmed the Orissa government. It has decided to combat it with geo-tubes. Orissa

Atmospheric warming and the amplification of precipitation extremes

Climate models suggest that extreme precipitation events will become more common in an anthropogenically warmed climate. However, observational limitations have hindered a direct evaluation of model-projected changes in extreme precipitation. We used satellite observations and model simulations to examine the response of tropical precipitation events to naturally driven changes in …

PSInSAR analysis monitors Lake Sarez displacement

Thanks to the availability of satellite data archives covering more than a decade, Permanent Scatterer SAR Interferometry (PSInSAR) nowadays represents one of the most powerful techniques capable of retrieving surface displacements of either natural (rock outcrops) or man made objects (buildings, infrastructures) already present within the surveyed area, acting as …

Urban cadastral mapping using very high resolution remote sensing data

With growing urban expanses, one of the pre-requisites for effective governance is Urban Information Systems (UIS) with content down to individual properties (and individuals). The basic input i.e., a map, in UIS should show individual property boundaries showing the plan outline of all structures existing within, at a scale of …

Geoinformatics as a tool for the assessment of the impact of ground water quality for irrigation on soil health

Secondary salinisation is the most harmful and extended phenomenon of the unfavourable effects of irrigation on the soil and environment. An attempt was made to study the impact of poor quality ground water on soils in terms of secondary salinisation and availability of soil nutrients in Faridkot district of Punjab …

National Remote Sensing Agency

National Remote Sensing Agency (NRSA), an autonomous organization under the Department of Space (DOS), is responsible for acquisition, processing, supply of aerial and satellite remote sensing data and continuously exploring the practical uses of remote sensing technology for multilevel (global to local) applications. It provides the necessary trained manpower through …

Forest Survey of India

Forest Survey of India (FSI) was created in June, 1981 with the objective of monitoring periodically (10 years cycle) the changing situation of land and forest resources and present the data for national planning; conservation and management of environmental preservation and implementation of social forestry projects. After a critical review …

National Remote Sensing Agency

National Remote Sensing Agency (NRSA), an autonomous organization under the Department of Space (DOS), is responsible for acquisition, processing, supply of aerial and satellite remote sensing data and continuously exploring the practical uses of remote sensing technology for multilevel (global to local) applications. It provides the necessary trained manpower through …

The global sweep of pollution: Satellite snapshots capture long distance movement

Over the past several decades, satellite surveillance with increasingly sophisticated instruments has enabled scientists to better visualize the complex fluctuations of several pollutants as they make their way around the Earth. One aspect of this research has focused on directly correlating satellite-observed concentrations of pollutants in the atmosphere with those …

Annual and seasonal variations in tropospheric ozone concentrations around Varanasi

This study examines the annual, seasonal and diurnal variations in the ambient concentrations of ozone at a suburban site of Varanasi, India, during 2002-2006. Prominent seasonal variations in ozone concentrations were recorded. Ozone concentrations were higher during the warmer months. Daytime 12-hourly mean monthly ozone concentrations varied from 45.18 to …

Africa: Atlas of Our Changing Environment

function open_new_popwin() { newwd=window.open("../files/images/20080731/Slide_show/photo_gallery.htm","","height=550,width=600,scrollbar=yes"); newwd.moveTo(200,75); }

Quality of ground water used for irrigation in Ujjain district of Madhya Pradesh, India

The ground water samples collected from different tehsils of Ujjain district were analysed in the laboratory for electrical conductivity (EC), pH, cations (Na+, K+, Ca2+ and Mg2+) and anions (CO32-, HCO3-, Cl- and SO42-). The ground water quality map of the district was generated using ERDAS-IMAGINE 8.7 software showing different …

Regional nitrogen cycle: An Indian perspective

During the past century through food and energy production, human activities have altered the world's nitrogen cycle by accelerating the rate of reactive nitrogen creation. India has made impressive strides in the agricultural front, in which N fertilizer plays a major role.

New Guinea forests shrinking faster than the Amazon

The lush tropical rainforests of Papua New Guinea are not the unspoilt haven that many believed till now. In fact, they are disappearing faster than those in the Amazon.

Stereo Cartosat-1 satellite remote sensing data in assessing topographic potential of soil erosion

Streo Cartosat-1 satellite data was processed to generate high spatial resolution digital elevation model (DEM) using ground control points (GCPs) collected through geodetic single frequency GPS in differential GPS mode. DEM was processed to generate bare earth DEM by removing heights of natural and man made features from DEM. The …

Cloud classification in NOAA AVHRR imageries using spectral and textural featuers

Clouds contribute significantly to the formation of many of the natural hazards. Hence cloud mapping and its classification becomes a major component of the various physical models which are used for forecasting natural hazards. The problem of cloud data classification form NOAA AVHRR (advance very high resolution radiometer) satellite imagery …

Distribution analysis of salt affected soils under canal and non-canal command area in a part of Etah District, U.P.

A World Bank-aided project on sodic land reclamation in Uttar Pradesh is being executed by U.P. Bhumi Sudhar Nigam, Lucknow, and Remote Sensing Applications Centre, U.P., Lucknow has the responsibility of sodic land mapping for the execution of land reclamation programme at the cadastral level. Sodic lands are mainly concentrated …

Landscape analysis in Fambong Lho Wildlife Sanctuary, East District, Sikkim, India using remote sensing and GIS

The high biological diversity and rich genetic forest resources of the state of Sikkim are to be conserved due to their sensitiveness to environmental degradation through continued human interference. The conservation of bioprospecting zones in natural forests as well as in protected areas is considered important for up keeping genetic …

Crop classification using biologically-inspired techniques with high resolution satellite image

Remote sensing provides a lucid and effective means for crop coverage identification. Crop coverage identification is a very important technique, as it provides vital information on the type and extent of crop cultivated in a particular area. This information has immense potential in the planning for further cultivation acivities and …

  1. 1
  2. ...
  3. 43
  4. 44
  5. 45
  6. 46
  7. 47
  8. ...
  9. 52

IEP child categories loading...