Remote Sensing
State of India’s environment 2022: in figures
This annual e-book in Figures analyses complex issues pertaining to the country’s environment and development. In today's world where information is available from so many sources that we end up not making any sense of the happenings, this report gives you compelling data stories that are credible and easy to …Use of high-resolution IKONOS data and GIS technique for transformation of landuse/landcover for sustainable development
Sustainable development has assumed utmost importance in view of the increasing demands on the finite natural resources due to increasing population and need to protect fragile environment. Remote sensing and GIS techniques have capability to assess the available natural resources and its use, and provide information for transformation of alternative …Integration of Bio-Geo spatial database for selected watersheds in Himalayan region
An integrated database has been designed to cater to the data collected by different agencies on various aspects of biological and geophysical data, as part of the coordinated programme onWatershed characterization and soil resource mapping for land use planning of Moolbari Watershed, Shimla District, Himachal
Precise characterization and inventorization of soil resource of Moolbari watershed was undertaken using satellite imagery and Survey of India toposheets to generate several layers of maps such as watershed boundary, drainage, soils, land use and land cover, physiography, slope and soil erosion using Geographic Information System technique.Evaluation of groundwater resource and estimation of its potential in Pathri Rao watershed, district Haridwar (Uttarakhand)
The present study attempts to delineate aquifers in the piedmont zone of Himalayan foothill region in Pathri Rao watershed, district Haridwar, Uttarakhand, India by using integrated hydrogeologic and geophysical techniques. The geophysical techniques included vertical resistivity soundings, two-dimensional resistivity image profiling and electromagnetic surveys. Nuclear isotope studies have been carried …The real holes in climate science
Like any other field, research on climate change has some fundamental gaps, although not the ones typically claimed by sceptics. Quirin Schiermeier takes a hard look at some of the biggest problem areas.Tropical cyclones and climate change
Whether the characteristics of tropical cyclones have changed or will change in a warming climate — and if so, how — has been the subject of considerable investigation, often with conflicting results. Large amplitude fluctuations in the frequency and intensity of tropical cyclones greatly complicate both the detection of long-term …Call to use satellite data for ground water zones
Satellite data and geographical information system (GIS) should be applied to locate the groundwater zones for the purpose of harnessing this resource to meet the drinking water demand of the people. This was the observation made by Dr S K Subramanian, Head of the Hydrology Division of the National Remote …India desertified
There was a time when desert in India was synonymous with the Thar in Rajasthan. But the sands have flown across—unchecked and uncontained—and taken over parts of Haryana, Punjab, Uttar Pradesh and Madhya Pradesh as they advance by half a kilometre every year. There would soon be more contenders on …Biosensors for quality control
Sudha Nambudiri KOCHI: With most people becoming conscious and aware of the quality of food, water and medicine, biosensors have started to play an important role in our lives. They are fast becoming an important tool in research and commercial applications as they can identify specific targets in the human …Satellite-based geomorphological mapping for urban planning and development a case study for Korba city, Chhattisgarh
Geomorphology is an important aspect which guides immensely in urban planning. Mapping of geomorphology not only gives an idea about the variations in landscape but also indirectly facilitates in evaluating the resources of an area. Present study shows the capability of satellite data in delineating major geomorphological units in an …Satellites beam in biomass estimates
Additional detail could help bring woodland into a future climate treaty.NGRI scientists develop model for earthquake forecast
Scientists of National Geophysical Research Institute (NGRI) here have developed a model for earthquake forecast.Impact of climatic parameters on statistical stream flow sensitivity analysis for hydro power
Large areas of Himalayas covered with seasonal snow during winter are rapidly changing during summer, significantly affects the stream flow of many rivers originating from Himalayas. This necessitates the efficient time series monitoring of seasonal snow cover in the rugged mountainous region throughout the winter and summer periods for weekly/monthly …Application of satellite-based rainfall products and SRTM DEM in hydrological modelling of Brahmaputra Basin
Hydrological modelling of large river catchments is a challenging task for water resources engineers due to its complexity in collecting and handling of both spatial and non-spatial data such as rainfall, gauge discharges, and topographic parameters. In this paper an attempt has been made to use satellite-based rainfall products such …Satellite-era glacier changes in High Asia
Background support presentation for NASASpatial analysis of groundwater potential using remote sensing and GIS in the Kanyakumari and Nambiyar Basins, India
Remotely sensed data can provide useful information in understanding the distribution of groundwater, an important source of water supply throughout the world. In the present study, the modern geomatic technologies, namely remote sensing and GIS were used in the identification of groundwater potential zones in the Kanyakumari and Nambiyar basins …Changing water resources study using GIS and spatial model - A case study of Bhatar Block, District Burdwan, West Bengal, India
Markov chains have been used to model spatial changes in a variety of spheres. Changes in social situations, economic standards, natural resource availability, and even weather conditions have been explored and predicted using Markov Random Function (MRF) and Markov Random Chains (MRC). In this section, the authors try to use …Application of remote sensing and GIS to assess land use changes in Jhunjhunun district of arid Rajasthan
Over the last four decades exploitation of natural resources to meet increasing societal demands for land based products has caused significant changes in land use and land cover not only in nature's best gifted regions but also environmentally sensitive arid regions. Through digital interpretation of IRS LISS-III data of 2004 …Geospatial approach for tiger habitat evaluation and distribution in Corbett Tiger Reserve, India
In this study, evaluation of tiger habitat in Corbett Tiger reserve is carried out using remote sensing, ground and other ancillary sources and is integrated using GIS using multi-criteria model. The results indicated that sal, mixed sal, miscellaneous forest, plantation, grassland, agriculture and scrub land are the major land use/land …Developing national carbon accounting and monitoring system for India's forest - An ecosystem model approach
The Kyoto Protocol has made carbon a tradable commodity which signifies the value of forest carbon budgets and the need for understanding factors influencing them. For measuring future consequences of changes in land usage, current level of carbon emission and future patten needs scientific evaluation, if forest based climate mitigation …