{"id":1474,"date":"2024-02-18T13:29:15","date_gmt":"2024-02-18T07:59:15","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=1474"},"modified":"2024-04-03T07:08:06","modified_gmt":"2024-04-03T01:38:06","slug":"q-in-which-of-the-following-activities-are-indian-remote-sensing-irs-satellites-used","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-in-which-of-the-following-activities-are-indian-remote-sensing-irs-satellites-used","title":{"rendered":"Q.\u00a0In which of the following activities are Indian Remote Sensing (IRS) satellites used?"},"content":{"rendered":"\n<ol class=\"wp-block-list\">\n<li>Assessment of crop productivity<\/li>\n\n\n\n<li>Locating groundwater resources<\/li>\n\n\n\n<li>Mineral exploration<\/li>\n\n\n\n<li><strong>Telecommunications<\/strong><\/li>\n\n\n\n<li>Traffic studies<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Select the correct answer using the codes given below.<\/p>\n\n\n\n<ul class=\"mcq wp-block-list\">\n<li>1, 2 and 3 only<\/li>\n\n\n\n<li>4 and 5 only<\/li>\n\n\n\n<li>1 and 2 only<\/li>\n\n\n\n<li>1, 2, 3, 4 and 5<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer:<\/strong>&nbsp;<strong>(a) 1, 2 and 3 only<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"irs-satellite-system\">IRS Satellite System<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Indian Remote sensing satellites<\/strong>&nbsp;are spacecraft outfitted with sensors that can&nbsp;<strong>capture images and data<\/strong>&nbsp;from space of the Earth.<\/li>\n\n\n\n<li>These sensors are capable of detecting different types of radiation emitted or reflected from the earth\u2019s surface.<\/li>\n\n\n\n<li>Remote sensing satellites are used for a variety of purposes, including&nbsp;<strong>weather monitoring, natural disaster monitoring, agriculture, forestry, and other land-based activities<\/strong>.<\/li>\n\n\n\n<li>The launch of India\u2019s first civilian&nbsp;<strong>IRS-1A spacecraft in March 1988<\/strong>&nbsp;marked the start of a successful journey for the Indian Space Programme.<\/li>\n\n\n\n<li>The&nbsp;<strong>National Natural Resources Management System (NNRMS)<\/strong>&nbsp;governs Indian Earth Observation activities.<\/li>\n\n\n\n<li>The&nbsp;<strong>Indian Earth Observation (EO) system<\/strong>&nbsp;has been providing operational services to the user community with a slew of payloads in the thematic series of Indian Remote Sensing Satellites (IRS) and the INSAT systems.<\/li>\n\n\n\n<li>The Indian Remote Sensing Satellite System operates&nbsp;<strong>one of the world\u2019s largest constellations of remote sensing satellites<\/strong>.<\/li>\n\n\n\n<li>IRS satellites provide data at various&nbsp;<strong>spatial, spectral, and temporal resolutions.<\/strong><\/li>\n\n\n\n<li>The&nbsp;<strong>National Remote Sensing Centre (NRSC)<\/strong>&nbsp;serves as the hub for the distribution of remote sensing satellite data products in India and neighbouring countries.<\/li>\n\n\n\n<li>NRSC has an earth station in&nbsp;<strong>Shadnagar<\/strong>, about 55 kilometres from Hyderabad, that receives data from nearly all modern remote sensing satellites.<\/li>\n\n\n\n<li><strong>Applications of IRS<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Applications in Agriculture and Soil<\/strong>\n<ul class=\"wp-block-list\">\n<li>Cropping pattern mapping;<\/li>\n\n\n\n<li>Pre- harvest crop area, production and yield estimation;<\/li>\n\n\n\n<li>Condition assessment;<\/li>\n\n\n\n<li>Monitoring command areas;<\/li>\n\n\n\n<li>Compliance monitoring (farming practices) e.g. crop stubble burning;<\/li>\n\n\n\n<li>Identification of suitable sites for different agricultural practices;<\/li>\n\n\n\n<li>Mapping of soil characteristics;<\/li>\n\n\n\n<li>Mapping of soil management practices;<\/li>\n\n\n\n<li>Mapping of saline soils and monitoring of land reclamation;<\/li>\n\n\n\n<li>Inventorying and categorization of wastelands; and<\/li>\n\n\n\n<li>Identification of fishery prospects.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Bio-resources and Environment<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mapping of forest cover, types, density and species inventory;<\/li>\n\n\n\n<li>Measurement of biophysical conditions of forest strands;<\/li>\n\n\n\n<li>Social forestry and agroforestry mapping;<\/li>\n\n\n\n<li>Biomass estimation;<\/li>\n\n\n\n<li>Afforestation and deforestation assessment;<\/li>\n\n\n\n<li>Forest fire surveillance;<\/li>\n\n\n\n<li>Forest health and vigor monitoring;<\/li>\n\n\n\n<li>Detailed survey and inventory of the existing bio-resources;<\/li>\n\n\n\n<li>Environmental impact assessment including pollution (land, water and air);<\/li>\n\n\n\n<li>Mapping and monitoring of tiger reserves, elephant corridors, biosphere reserves, mangroves and coral reefs;<\/li>\n\n\n\n<li>Assessment of fuel wood and timber resources; and<\/li>\n\n\n\n<li>Environmental hazard related studies like zonation and damage assessment (floods, drought, cyclone, landslide, volcano, earthquake etc.)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Geology and Mineral Resources<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mapping of surfacial deposits and bedrock;<\/li>\n\n\n\n<li>Lithological and structural mapping;<\/li>\n\n\n\n<li>Mineral prospecting and exploration; and<\/li>\n\n\n\n<li>Geo \u2013 hazard mapping, monitoring and zonation.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Oceanography<\/strong>\n<ul class=\"wp-block-list\">\n<li>Identification of potential fishery zones;<\/li>\n\n\n\n<li>Phytoplankton abundance and habitat assessment;<\/li>\n\n\n\n<li>Observation of marine pollution and sedimentation and its impact; and<\/li>\n\n\n\n<li>Assessment of sediment dynamics, tidal fluctuations, sea level changes and coastal circulations.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Water Resources<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mapping of surface water bodies;<\/li>\n\n\n\n<li>Identification of potential ground water resources;<\/li>\n\n\n\n<li>Wetland mapping and monitoring;<\/li>\n\n\n\n<li>Snow pack and glacial monitoring;<\/li>\n\n\n\n<li>Ice thickness measurements;<\/li>\n\n\n\n<li>Rivers, watersheds and ice lake monitoring and modelling;<\/li>\n\n\n\n<li>Flood mapping and monitoring;<\/li>\n\n\n\n<li>Monitoring reservoir extends over seasons and irrigation scheduling and flood management; and<\/li>\n\n\n\n<li>Snowmelt runoff forecasting.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Urban Sector<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mapping and Land Use Land Cover classification;<\/li>\n\n\n\n<li>Urban sprawl analysis;<\/li>\n\n\n\n<li>Identification of illegal encroachment, and constructions;<\/li>\n\n\n\n<li>Property tax assessment and estimations;<\/li>\n\n\n\n<li>Transport and urban planning;<\/li>\n\n\n\n<li>Mapping of utilities and services;<\/li>\n\n\n\n<li>Population estimation;<\/li>\n\n\n\n<li>Slum detection and monitoring; and<\/li>\n\n\n\n<li>Site suitability analysis.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Applications in Cartography<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mapping is an essential component of the resource management process, and mapped information is a common byproduct of the analysis of remotely sensed data from IRS series satellites.<\/li>\n\n\n\n<li>The Cartosat series is designed specifically for geoengineering mapping and DTM (Digital Terrain Modelling) or DEM (Digital Elevation Modelling).<\/li>\n\n\n\n<li>Natural and man-made features such as transportation networks, settlements, and administrative boundaries are represented spatially in GIS (Geographical Information System) using geo-referenced data and integrated with attribute or non-spatial information.<\/li>\n\n\n\n<li>For planning, evaluation, and monitoring, as well as civilian and military reconnaissance and land use planning, baseline, thematic, and 2D and 3D topographical maps are required.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Advantages of Remote Sensing Satellites<\/strong>\n<ul class=\"wp-block-list\">\n<li>The advantages of satellite-based remote sensing over other techniques include its broad coverage, time savings, and tremendous cost effectiveness.<\/li>\n\n\n\n<li>Large area coverage allows for a regional survey of a wide range of themes and the identification of large features.<\/li>\n\n\n\n<li>Coverage that is repeated, allowing monitoring of dynamic themes such as water, agriculture, and so on.<\/li>\n\n\n\n<li>Data collection at various heights.<\/li>\n\n\n\n<li>Data collection in inaccessible areas.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Select the correct answer using the codes given below. Answer:&nbsp;(a) 1, 2 and 3 only IRS Satellite System<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[44],"years":[58],"class_list":["post-1474","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-science-and-tech","years-58"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":44,"label":"Science and Tech"}],"years":[{"value":58,"label":"2015"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":44,"name":"Science and Tech","slug":"science-and-tech","term_group":0,"term_taxonomy_id":44,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=1474"}],"version-history":[{"count":1,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1474\/revisions"}],"predecessor-version":[{"id":1486,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1474\/revisions\/1486"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=1474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=1474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=1474"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=1474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}