ID: 58308
Title: Reservoir impact assessment on land use/land cover and infrastructure- A case study on Polavaram project
Author: Devastu Ramprasad Naik, Suryaprakasarao Bosukonda, Kamireddy Mrutyunjayareddy
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Environmental impact assessment, land use/land cover, submergence, socio-economic, GIS, Remote sensing
Abstract: The present study aims to estimate the loss of land use/land cover and infrastructure facilities dur the sumbergence by constructing the reservoir over the River Godavari at Polavaram Village. Detailed Land use/cover mapping has been carried out using LISS-III sensor data of IRS P6 satellite and linked to socio-economic data to analyze the administrative boundary wise enviornmental impact assessment in the study area. Land use/cover features are estimated from the Remote Sensing data through visual interpretation. Area covered below the 45.72 m contour above the mean sea level (MSL) is taken as submerged area due to the dam construction. Total area under submerged area due to the dam construction. Total area under submergence is estimated to be 58,658 ha, where 159 villages of three districts are affected by the project. The total population to be rehabilitated is about 1.2 lakshs, out of which maximum affected are Scheduled Tribes (58,781). Besides this, about 311 educational institutions, 202 medical institutions, 37 credit institutional and 55 postal institutions will be submerged due to the project. Further, nine mining sites, 24 tourist/historical sites and 78 agro-based industries will be displaced. The total road length of 673 km will go under submergence.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58307
Title: Water balance study for a basin integrating remote sensing data and GIS
Author: Sanjay Kumar Jain, Sharad K Jain, V Hariprasad, Anju Choudhry
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Satellite, ET, Tapi, runoff, NDVI, NOAA
Abstract: Water balance of a basin involves estimation of input precipitation, runoff, infiltration and evapotranspiration (ET). Although ET may have large variations over a big basin, it is commonly estimated using a few point measurements and this makes the estimation error prone. Satellite based remote sensing data provides few parameters for estimation of energy fluxes, at the land surface and atmosphere interaction in a distributed manner using the meteorological parameters. These parameters through surface energy balance equation have been used for the estimation of ET in this study. Various spatially distributed variables required for ET estimation; viz. NDVI, surface albedo, surface temperature etc. have been derived using remote sensing and ancillary data for Tapi basin located in western India. Beside this field data such as rainfall, air temperature, relative humidity, sunshine hours etc. have been used. For computation of runoff, Soil Conservation Services (SCS) approach has been considered. Tapi basin up to Ukai dam has been selected as the study area. Satellite data from National Oceanic and Atmospheric Administration (NOAA), Polar Orbiting Environmental Satellite, which carries the Advanced Very High Resolution Radiometer (AVHRR), have been used for preparation of various maps required for runoff and ET analysis. The results of runoff and ET have been compared with observed data for 2 years, 2002-2003 and the results have been found in good agreement with observed data.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58306
Title: Spatial technologies in deriving the morphotectonic characteristics of tectonically active Western Tripura region, Northeast India
Author: J D Das, Yazdana Shujat, A K Saraf
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Remote sensing, GIS, drainage basin, Morphometry, tectonics
Abstract: Employing integrated remote sensing and GIS technology the western most part of Tripura region (Northeast India) and adjoining Bangladesh region has been investigated in the light of its geomorphological characteristics. Nature of fold ridges, several streams and the respective drainage basins are well depicted in satellite images and digital elevation model providing meaningful information. Quantitative parameters such as stream sinuosity, drainage basin asymmetry, basin elongation ratio have been computed. Main rivers of the study area, namely the Gomti and Khowai follows extremely meanering path and crosses through the tranversely faulted anticlinal ridges. Fluvial anomalies viz. shift in stream channel and the abandoned meandering loops have been inferred and mapped. The Haora river in the study area exhibits northward shoft in some part. Development of drainage system towards north and south from the drainage divide along the latitude 23045 ' N indicated up arching of the region which is also corroborated by the extracted topographic profiles. It has been observed that several tributary streams have gone dry and agricultural fields are developed along the dried up stream. These derived parameters remained useful to understand the nature of topographical modification attributed to the possible tectonic activity.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58305
Title: Application of Remote sensing in studying Holocene sediments and tectonic episodes at Kelshi, Ratnagiri district, Maharashtra, India
Author: Ashok Marathe, B S CHandrashekhar
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Archaeological, Pottery, Shilahar period, Medieval period, VLF principle
Abstract: Kelshi is a coastal village, located on the southern bank of the bharja river in Dapoli taluka of Ratnagiri district. All along the coast occurs a habitation site which is overlaid by a sand deposit having a thickness of +20 m. The archeological artifacts collected around the site are found to be significant in understanding the antiquity of the site. It also substantiates that, human occupation survived here for seven centuries. Remote sensing data interpretation carried out has revealed the existence of three lineaments in this area. In the field, the lineaments in this area. In the field, the lineaments have been confirmed as faulted surfaces and the magnetude of the movements along are measurable. A geophysical survey was conducted by using ABEM WADI equipment for conformation of outcome of the aerial-photo interpretation. It confirms that the area had undergone three tectonic activites after 1524 A D. The inferences based on het investigations convinced us to study the historical seismicity of this region. A comprehensive and exhaustive investigation in such areas is necessary to know the evolution of the west coast of India and the tectonic activity during the late Holocene.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58304
Title: Morphotectonics of the area around Renukoot, district Sonbhadra, U P using Remote sensing and GIS techniques
Author: C K Singh, Vaibhava Srivastava
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Morphotectonics, GIS, Mahakoshal, Dudhi, Son Narmada South Fault, Landform
Abstract: A part of Precambrian rocks of central India around Renukoot, district Sonbhadra, U P., exhibits noteworthy differences in morphometric characteristics such as drainage density, mean stream length, bifurcation ratio and stream frequency across Son Narmada South Fault of the Son Narmada Lineament Zone. The Remote Sensing and GIS based present study explains the tectonic evolution of the terrain by dividing the area into two morphotectonic units namely Dudhi Morphotectonic Unit (DMU) and Mahakoshal Morphotectonic Unit (MMU) with the help of a proposed model. The study reveals that the landform features of the rocks of DMU and MMU of the study area are strongly controlled by underlying lithology and structures. The study also reveals different tectonic histories for the units until the last or the fourth phase of deformation dominated by shearing movement.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58303
Title: Quantification of urban landscape dynamics using patch parameters and landscape indices: An analytical study of Ranchi
Author: Pammi Nitin Sinha, Nilanchal Patel, Ayyemperumal T Jeyaseelan, Vivek K Singh
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Urbanization, patch parameters, landscape indices, landscape dynamics, spatio-temporal dynamics
Abstract: Urbanization incepts serious challenges of growth and its management. The issues of urbanization manifest in the form of overcrowding, congestion, insufficient infrastructure, inadequate service provisioning, environmental degradation, pollution etc and affect the socioeconomic development of the city. Ranchi, the capital of newly formed state of Jharkhand (India) has been witnessing the same scenario; raising the question of its planning and management of growth to make it more efficient and sustainable. It hoists the necessity to study the pattern of urbanization and its impact on other landuse/landcover categories in Ranchi city. In order to assess the urbanization pattern and spatio-temporal dynamics in the study area, the changing pattern of the three significant patch parameters viz. patch frequency, largest patch size and average patch size of all affected landuse/landcover categories over a time gradient representing the pre-capital and post-capital formation phases of the Ranchi city have been anayzed. The two conventional landscape indices viz. shannon ' s diversity Index and Simpson ' s diversity index and a newly developed index ' Normalized Patch size Range Index ' have been employed in the analyses which not only ascertained the finding derived but also provided meaningful insights pertaining to the spatio-temporal urban landscape dynamics prevailing in the Ranchi city.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58302
Title: Evaluating the long-term urban expansion of Ranchi urban agglomeration, India using geospatial technology
Author: Amit Kumar, Arvind Chandra Pandey, Najmul Hoda, A T Jeyaseelan
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Urban expansion, land consumption, land transformation, multi-temporal
Abstract: The present study analyze the built-up expansion of Ranchi urban agglomeration over a period of about 8 decades from 1927-2005. Satellite images and topographical maps wer eused to evaluate land use dynamics during these period. Built-up growth of 473.7% during 1927-2005 was primarily at the expense of agricultural land along with reduction of natural water bodies reflects negative impacts of build-up expansion, which increased many folds in recent decades. The built-up growth is also analyzed with reference to population growth, land consumption rate and land transformation. The land loss due to increasing built-up growth of Ranchi were compared with other capital regions and cities along with population increase to provide insight into the possible scenario of built-up expansion in Ranchi urban area.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58301
Title: Spatial metrics to analyse the impact of regional factors on pattern of Urbanisation
Author: Sadhana Jain, Divyani Kohli, Ram Mohan Rao, Wietske Bijker
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Directional analysis, spatio-temporal pattern, spatial metrics
Abstract: In recent years, there has been lot of emphasis on the study of urban land use/land cover changes to discover the growth pattern due to rapid urbanisation. This study presents spatial metrics and gradient analysis approach for quantifying and capturing changes in urban landscape using LISS III imagery of 1999, 2001 and 2004 of Gurgaon, India. A combination of spatial metrics i.e. percentage of landscape, mean patch size, number of patches, landscape shape index and largest patch index, available in Fragstats ver. 3.3, have been used to quantify the patterns of urban growth in different directions in terms of size, shape and complexity of development. The local built-up areas were quantified by the " moving window" technique. A gradient analysis has been carried out through sampling from a reference point to 8 km in 16 directions with a window size of 500 mts. Results of this study demonstrate the potential of spatial metrics and gradient modelling to quantify the impact of regional factors on the growth pattern of Gurgaon city.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58300
Title: Relationship between land cover ratio and urban heat island from Remote sensing and automatic weather stations data
Author: Xingping Wen, Xiaofeng Yang, Guangdao Hu
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Remote sensing, urban heat island, Land cover, automatic weather stations, landscape metric
Abstract: Urban heat island (UHI) effect has a close relation to land covers type. This paper investigates the relationship between land cover ratio and UHI in Guangzhou, south of China using remote sensing and automatic weather stations data. The temperature data were obtained by Automatic weather stations (AWS) of Guangzhou in October, 2004, at the same time with the CBERS remote sensing image acquired. Firstly, the hourly mean temperature was computed from hourly AWS data. Secondly, the CBERS remote sensing image was classified using support vector output. Thirdly, the classification result was coverlapped with a round buffer with 1.5 KM radius centered on the AWS, and then the land cover ratio, Edge Density (ED) and Mean Fractal Dimension (MFRACT ) of buffers were computed out. Finally the correlation coefficient between hourly mean temperature and land cover ratio, ED and MFRACT was calculated. It concluded that UHI intensity was heavier during nightime than daytime. Stations with higher vegetation ratio and higher ED had lower heat island effect. On the contrary, stations with highe rimpervious ratio and lower ED had more serious heat island effect. The positive-negative of correlation coefficient between hourly mean temperature and vegetation ratio during 11:00 -17:00 h (local time) was opposite to that during other time. ED was negatively correlated with hourly mean temperature except during 11:00-17:00 h. On the the contrary, MFRACT was positively correlated with hourly mean temperature. It implied that fragmentations of patches were favorable to UHI alleviation, and complexities of patch were unfavorable factors.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58299
Title: Quantitative determination of soil erosion and prioritization of micro-watersheds using Remote sensing and GIS
Author: Vipul Shinde, Arabinda Sharma, Kamlesh N Tiwari, Manjushree Singh
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Remote sensing, soil erosion, GIS, USLE, Priority
Abstract: Soil erosion which occurs at spatially varying rate is a widespread threat to sustainable resource management at watershed scale. Thus estimation of soil loss and identification of critical area for implementation of best management practice is central to success of soil conservation programme. The present study focuses application of most widely used Universal Soil Loss Equation (USLE) to determine soil erosion and prioritization of micro-watersheds of Upper Damodar Valley Catchment (UDVC) of India. Annual average soil loss for the entire basin is 23.17 t/ha/yr; for microwatersheds. High soil loss is observed in 345 microwatersheds, medium in 159 micro-watersheds and low soil loss is observed in 201 micro-watersheds. It is found that, out of 705 micro-watersheds of UDVC, 453 micro-watersheds are in agreement with AISLUS suggested priority which is based on observed sediment yield, 116 micro-watersheds under predict and 136 mcirowatersheds over predict the priority. Geographic Information System (GIS) is applied to prepare various layers of USLE parameters whcih interactively estimate soil erosion at micro-watershed level. The main advantage of the GIS methodology is in providing quick information on the estimated value of soil loss for nay part of the investigated area.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58298
Title: Assessing NDVI spatial pattern as related to irrigation and soil salinity management in Al-Hassan Oasis, Saudi Arabia
Author: Yousef Y . Aldakheel
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: NDVI, Spatial pattern, Irrigation management, Soil salinity, Al-Hassan, Saudi Arabia
Abstract: Sustainability of irrigated agricutlure in arid and semi arid lands depends, mainly on the level of soil salinity and the quality of irrgation water. Remotely sensed data can provide information about the extent of vegetated irrigated areas. Al-Hassan oasis, Saudi Arabia is probably the largest oasis in the world depends mostly on tapped ground water to irrigate mainly date palm groves for its economic survival. This study tried to investigate the extent of soil salinity and the quality of irrigation water and the relationship with vegetation growth, employing NDVI derived from Landsat satellite imagery.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58297
Title: Utility of hyperspectral data for potato late blight disease detection
Author: Shibendu Shankar Ray, Namrata Jain, R K Arora, S Chavan, Sushma Panigrahy
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Potato crop, late blight, reflectance, spectroradimeter, vegetation indices, discriminant analysis
Abstract: The study was carried out to investigate the utility of hyperspectral reflectance data for potato late blight disease detection. The hyperspectral data was collected for potato crop at different level of disease infestation using hand-held spectroradiometer over the spectral range of 325-1075 nm. The data was averaged into 10-nm wide wavebounds, resulting in 75 narrowbands. The reflectance curve was partitioned into five regions, viz. 400-500 nm, 520-590 nm, 620-6890 nm, 770-860 nm and 920-1050 nm. The notable differences in healthy and diseased potato plants were noticed in 770-860 and 920-1050 nm range. Vegetation indices, namely NDVI, SR, SAVI and red edge were calculated using reflectance values. the differences between the vegetation reflectance values. The differences between the vegetation indeces for plants at different levels of disease infestation were found highly significant. The optimal hyperspectral wavebands to discriminate the healthy plants from disease infested platns were 540, 610, 620, 700, 710 730, 780 and 1040 nm whereas upto 25% infestation could be discriminated using reflectance at 710, 720 and 750 nm.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58296
Title: Improvement in precision of crop acreage estimation by remote sensing using frequency distribution based stratification
Author: Nita Bhagia, D R Rajak N K Patel
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Acreage, classification, stratification, precision
Abstract: A study was conducted to improve precision of crop acreage adopting stratified random sampling approach. Remotely sensed data was used to classify mustard crop for the states of Rajasthan, Madhya Pradesh, Uttar Pradesh, Gujarat and Haryana covering 81% of mustard area of India. A grid of size 5x5 km was super-imposed on calssified image of study area and proportion of mustard crop within the grid was ascertained. Crop proportion was used to determine strata. Stratification was done based on equal interval of proportion, equal sample number and cumulative square root of frequency method gave highest precision in all the cases.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58295
Title: Spatio-temporal coherence based technique for near-real time sea-ice identification from Scatterometer data
Author: Sandip R Oza, R K K Singh, N K Vyas, B S Gohil, Abhijit Sarkar
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: Sea-ice identification, Scatterometer, quickSCAT, spatio- temporal coherence
Abstract: The identification of sea-ice has frequently been cited as one of the most important tasks for deriving the sea-ice parameters and to avoid erroneous retrieval of wind vector over sea-ice infested oceans using space-borne scatterometer data. Discrimination between sea-ice and ocean is ambiguous under the high wind and /or thin/scattered ice conditions. The pre-launch technique developed for Oceansat-2, utilizes the dual - polarized QuikSCAT scatterometer data by using the spatio-temporal coherence properties of sea ice in addition to backscatter coefficient and the Active Polarization Ratio. Results were compared with the operational sea-ice products from National Snow and Ice Data Center. The threshold API value of -0.025 was found optimum for sea-ice and ocean discrimination. The overall sea-ice identification accuracy achieved was of the order of 95 percent, ranging from 92.5% (during December in Southern Hemisphere) to 98% (during March in Northern Hemisphere). The applicability of the algorithm for both the Arctic as well as Antartic makes it suitable for its operational use with the Oceansat-2 scatterometer data.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None
ID: 58294
Title: Comparison of planimetric and thematic accuracy of OrbView-3 and IKONOS images
Author: Mustafa Yanalak, Elif Sertel, Nebiye Musaoglu, Cengizhan Ipbuker, Sinasi Kaya
Editor: Dr George Joseph
Year: 2011
Publisher: Indian Society of Remote Sensing, Vol 39, No 2, June 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of the Indian Society of Remote Sensing
Keywords: OrbView-3, IKONOS, thematic accuracy, planimetric accuracy, Geometric correction, Orthorectification
Abstract: Spatial mapping from space using high resolution satellite sensor data instead of conventional data collection techniques widely gained popularity. This study aims to analyze the planimetric and thematic accuracy of high-resolution OrbView-3 and IKONOS orthoimages. OrbView-3 and IKONOS images of a test area were acquired and these images were geometrically corrected using rational polynomial functions to conduct accuracy assessment. 40 Ground Control Points (GCPs) generated from static Global Positioning System (GPS) survey were used in the orthorectification procedure. 182 Test Points (TPs) produced from terrestrial surveying technique were used to anlayze the accuracy of orthorectifications. Root Mean Square Error (RMSE) values obtained for GCPs and TPs were used to determine the planimetric accuracy of these images. Thematic accuracy analyses were conducted in radiometric and spatial base. Transects, lines and polygons were created to analyze the radiometric quality of data sets and to determine minimum distinguishable distance and distinguishable area. Both planimetric and thematic accuracy analyses illustrated that OrbView-3 and IKONOS images could be used to create 1:10000 scale map of the concerned region with appropriate planimetric and thermatic quality.
Location: TE12, New Biological Sciences, IISc
Literature cited 1: None
Literature cited 2: None