Believers in global warming do so because a painstakingly built up body of theory and evidence points towards a disaster of catastrophic scale.
Hence, the five land-cover classes are as follows: urban built-up, vegetation, water body, green spaces, and crop land were mapped.
The images of the study area were categorized into five different classes namely vegetation, agriculture, barren, built-up and water body.
The satellite data of IRS LISS-III were classified into five categories viz., built-up, vegetation, water body, agricultural land and others by employing unsupervised ISODATA classification technique.
A Stratified Random Sampling (SRS) technique was used to plot 299 samples (30 m × 30 m) on various LC features e.g. forest, agriculture, grassland, built-up area, water body etc. GPS readings (latitude, longitude and altitude) were recorded with digital camera photographs against each sample, which were added into a geo-database for record keeping.
Land use types were classified as follows: built-up land, water body, dry land, scrub, orchard, irrigable land, rice paddies, and forest.
Both LUC maps contained four categories, namely built-up area, vegetation, water body, and wet land.
The total catchment area has been subdivided into five landuse categories that stand for dense vegetation, light vegetation, fallow land, built-up area and water body.
On the basis of land use classification developed by NRSA (1995), the land use for Delhi was divided into five main classes namely water body; built-up area; forest; agricultural fields (sparse vegetation); and wasteland.
Different classes are forest and dense vegetation, light vegetation, fallow land, built-up area and water body, and accuracy assessment of the classified images has been done after the classification.
