Factors controlling the survival of coastal dunes during multiple hurricane impacts in 2004 and 2005: Santa Rosa barrier island, Florida

Holocene climate records from lake sediments in India: Assessment of coherence across climate zones

Study on fusibility of coal ash rich in sodium and sulfur by synthetic ash under different atmospheres

The evolution of the Samaoding paleolandslide river blocking event at the upstream reaches of the Jinsha River, Tibetan Plateau

https://drs.nio.org/drs/bitstream/handle/2264/4569/Geomorphology_214_436a.pdf?sequence=1

Coastal processes and longshore sediment transport along Kundapura coast, central west coast of India

Late Quaternary environmental and sea level changes from Kolleru Lake, SE India: Inferences from mineral magnetic, geochemical and textural analyses

Konkan is the coastal lowland extending east–west from the Arabian Sea to the Western Ghat escarpment and north–south from north of Mumbai to north of Goa. The city Malvan is located in Sindhudurg district and bounded by three creeks viz., Karli, Kolamb, and Kalavli, of which Karli and Kalavli are the major rivers giving sediment input for this coast. The place is well known for the Sindhudurg Island Fort built by the Maratha King Shivaji during the 16th century and is crowded by tourists during the fair-weather season. The present study is a preliminary work and emerged while carrying out remote sensing application on the southern coast of Maharashtra. Hence, the present report does not have detailed in situ/field data. The remote sensing data provide significant information regarding physical setting, tectonic features, and coastal landforms, especially the large-scale morphological features such as beach ridges, spits, bars, islands, barrier beaches, and lagoons. In the present study, beach ri...

Evolution of Malvan Coast, Konkan, West Coast of India—A Case Study Using Remote Sensing Data

The beaches under study are characterized by distinctly different magnetic signatures in terms of their concentration and magnetic grain sizes. Seasonal variation in accumulation and erosion is seen at Vengurla Beach (Stations 1–7), which is moderate to very low premonsoon, high to low during monsoon season, and low to very low postmonsoon. Presence of fine single domain magnetic grains is moderate to high premonsoon, moderate to low during monsoon, and low postmonsoon at stations 1, 4, 7 (Vengurla beach), and 8 (Aravali beach). Aravali Beach has a very low concentration of magnetic minerals, precluding realistic assessment of its seasonal accretion–erosion pattern. At Redi Beach (Stations 15–20), the concentration levels of magnetic minerals are high premonsoon, which further increases during monsoon season, although at certain locations the rise continues postmonsoon. The sediments of these three beaches have variable proportions of magnetite, titanomagnetite, and hematite. The concentration of...

Mineral Magnetic Properties of Sediments of Beaches, Redi–Vengurla Coast, Central West Coast of India: A Seasonal Characterization and Provenance Study

The sediments of Binge Beach are fine to very fine (2.05 to 3.15 φ ), very well to moderately sorted (0.231 to 0.813 φ ).), and strongly coarse-skewed to strongly fine-skewed (-0.464 to +0.381) in their grain size characteristics. The spatial distribution of the sediments during the study period indicates that the sediments decrease in size from station 1 towards station 3, i.e., due NW and also show greater positive skewness towards NW which in turn shows sediment transport due NW. The CM patterns suggest that the beach represents a low energy depositional environment where sediments are deposited by the mechanism of traction current. The morphological variations show an overall pattern of accretion but the beach is accreting more rapidly in its central portion compared to distal margins. The longshore currents are opposing and, when compared with morphological variations, they indicate a circulating pattern of sediments within the small bay between the two promontories (during the study period).

/pdf/small-scale-temporal-variations-in-morphology-and-grain-size-38vjla5qsd.pdf

Small Scale Temporal Variations in Morphology and Grain Size Characteristics of the Sediments of Binge Beach, India

Heavy rainfall triggered landslides are on the rise along the Western Ghats making it a matter of priority to identify landslide-prone areas well in advance. The present effort is aimed at identifying landslide susceptible villages (LSV) around the Kalsubai region of Deccan volcanic province (DVP), Maharashtra, India from 8 weighted landslide parameters- rainfall, slope, lithology, land use and land cover (LULC), soil properties, relative relief, aspect and lineament. These parameters were combined with advanced remote sensing (RS) data and processed in geographical information system (GIS) as well as in image processing software, which are an integral part of geospatial techniques. Out of the total 59 villages, the study identified 9 villages are situated in very high, 13 in high, 12 in moderate, 11 in low and 14 in very low risk zones. Our data reveals incessant heavy rains and steep slopes are the dominant factors in triggering landslides, exacerbated by anthropogenic activity prevalent in the study area. The spatial and non-spatial database created will help to take effective steps in preventing and/or mitigating landslide disasters in the study area. The methodology can be applied to identify other landslide prone areas in a cost effective way.

http://14.139.123.141:8080/jspui/bitstream/123456789/1153/1/JGSI%2c%2090%2c%20301-311%2c%202017.pdf

P. T. Hanamgond

Papers

Late Quaternary environmental and sea level changes from Kolleru Lake, SE India: Inferences from mineral magnetic, geochemical and textural analyses

Evolution of Malvan Coast, Konkan, West Coast of India—A Case Study Using Remote Sensing Data

Mineral Magnetic Properties of Sediments of Beaches, Redi–Vengurla Coast, Central West Coast of India: A Seasonal Characterization and Provenance Study

Small Scale Temporal Variations in Morphology and Grain Size Characteristics of the Sediments of Binge Beach, India

Identification of landslide susceptible villages around Kalsubai region, Western Ghats of Maharashtra using geospatial techniques