Geomorphology and drainage characteristics of the Gurpur river basin have been studied using satellite images, topographic maps geographic information system (GIS) techniques. morphometric parameters used to prioritize sub-basins (SB-I -VII) identify most deficit/surplus zones groundwater. The study reveals that 8% (SB-VII) 85% (SB-II) area geomorphic units poor moderate groundwater prospect. About 16% (SB-V) 92% were estimated as good excellent for potential. Bifurcation ratio results show...

Mamatha, P.K.; Anil Kumar, A.; Jayappa, K.S.; Mohan, K.G.; Subhradeep Das; Anupama, L.C., and Shaniba, V., 2025. Multitemporal analysis of shoreline changes along the southwest coast India: Inferences from geological, geomorphological, geophysical, remote-sensing studies. Journal Coastal Research, 41(1), 73–82. Charlotte (North Carolina), ISSN 0749-0208. In a multitemporal study coastal stretch between Chandragiri Karingotte River mouths, Kasaragod District, Kerala State, on India, an...

Morphological changes on Sagar Island are occurring at an alarming rate due to both natural and anthropogenic activities. The eastern part of the island is rapidly eroding destabilization growth tidal flats in Muriganga estuary gradual shifting water current towards island. Over last four years (1996–1999), coastal erosion has been much higher (11.35 km2) than accretion (2.65 km2), compared with conditions prior 1996. Coastal places like Dublat, Basantpur, Gobindapur, Collectorganj,...

Abstract Hypsometric analysis is useful for understanding the geomorphic stages of a river basin. parameters have been evaluated and curves are prepared forall 20 sub-basins Kali River. Thirteen found to be under younger with high hypsometric integral (Ea) values subjected recent tectonic activities. The remaining seven approaching mature stage more erosion less impacted by Six lower head (<0.56) indicate least effect diffusive processes another six medium (0.60–0.68) depict moderate...

Abstract Various developmental projects have come up in the coastal zone of Dakshina Kannada and Udupi districts last few decades. A number beaches are subjected to erosion lots properties destroyed specially during SW monsoon season along Mangalore coast recent years. In order protect properties, a seawalls - each ranging length between 100 m 2500 built since 1980s. very them scientifically, but most just dumping granite blocks directly on shoreline. present study, an attempt is made...

Abstract The Netravati and Gurpur (N–G) river basins are tectonically active due to a number of seismically faults/lineaments their proximity Mulki–Pulicat Lake axis. gradient the channels has gradually reduced (after ∼10 km from origin) forced rivers flow slowly in meandering zigzag paths. nature intensity meanders governed by geological tectonic conditions basins. Significant changes channels, between years 1910 2005, have been detected three blocks – Block-I (Netravati) Blocks-II III...

Satellite data product validation and algorithm development activities both require the substantial accumulation of high-quality in situ observations. Data were acquired from Ocean Colour Monitor (OCM) observations for tuning Tassan’s (Tassan, 1994) to retrieve suspended sediment concentration (SSC) coastal waters off southern Karnataka, India. has been modified regionally by adopting statistical/graphical criteria characterize spatial seasonal distribution SSC. A concurrent collocated...

Eight beaches of Dakshina Kannada and Udupi districts were regularly surveyed monitored between 1985 1999 to understand morphological changes. During SW monsoon the wide summer this coast experience erosion. Eroded start growing during post-monsoon period are fully developed by April/May. These erosional accretional trends cyclic annual in nature. Minimum sediment is stored on July/August maximum Sediment budget estimates reveal a net gain hence, there an trend along coast. Wherever erosion...

Abstract. To assess the relative tectonic activity classes, five geomorphic indices such as stream-gradient index (SL), drainage basin asymmetry (Af), hypsometric integral (Hi), valley floor width – height ratio (Vf) and shape (Bs) of ninety-four sub-basins Valapattanam river have been analysed by applying standard formulae. Relative classes (Iat) obtained average (S/n) different classified into three groups. Group I shows high with values S/n &lt; 2; group II moderate &gt; 2 to 2.5; III low...