Role of interaction between dynamics, thermodynamics and cloud microphysics on summer monsoon precipitating clouds over the Myanmar Coast and the Western Ghats

2013 ◽  
Vol 43 (3-4) ◽  
pp. 911-924 ◽  
Author(s):  
Siddharth Kumar ◽  
Anupam Hazra ◽  
B. N. Goswami
Keyword(s):  
Summer Monsoon ◽  
Western Ghats ◽  
Cloud Microphysics ◽  
Precipitating Clouds ◽  
The Western Ghats

Precipitation modes over the Western Ghats orography during the summer monsoon season

2021 ◽  
Author(s):  
Jayesh Phadtare ◽  
Jennifer Fletcher ◽  
Andrew Ross ◽  
Andy Turner ◽  
Thorwald Stein ◽  
...  
Keyword(s):  
Summer Monsoon ◽  
West Coast ◽  
Western Ghats ◽  
Monsoon Season ◽  
Radiosonde Data ◽  
Summer Monsoon Season ◽  
The West ◽  
Radiosonde Station ◽  
Westerly Flow ◽  
The Western Ghats

<p>Precipitation distribution around an orographic barrier is controlled by the Froude Number (Fr) of the impinging flow. Fr is essentially a ratio of kinetic energy and stratification of winds around the orography. For Fr > 1 (Fr <1), the flow is unblocked (blocked) and precipitation occurs over the mountain peaks and the lee region (upwind region). While idealized modelling studies have robustly established this relationship, its widespread real-world application is hampered by the dearth of relevant observations. Nevertheless, the data collected in the field campaigns give us an opportunity to explore this relationship and provide a testbed for numerical models. A realistic distribution of precipitation over a mountainous region in these models is necessary for flash-flood and landslide forecasting. The Western Ghats region is a classic example where the orographically induced precipitation leads to floods and landslides during the summer monsoon season. In the recent INCOMPASS field campaign, it was shown that the precipitation over the west coast of India occurred in alternate offshore and onshore phases. The Western Ghats received precipitation predominantly during the onshore phase which was characterized by a stronger westerly flow. Here, using the radiosonde data from a station over the Indian west coast and IMERG precipitation product, we show that climatologically, these phases can be mapped over an Fr-based classification of the monsoonal westerly flow. Classifying the flow as 'High Fr' (Fr >1), 'Moderate Fr' ( 0.5 < Fr ≤ 1) and 'Low Fr' ( Fr ≤ 0.5 ) gives three topographical modes of precipitation -- 'Orographic', 'Coastal' and 'Offshore', respectively.  Moreover, these modes are not sensitive to the choice of radiosonde station over the west coast.</p>

scholarly journals Vanishing waters: water chemistry of temporary rock pools of the Western Ghats, India

2021 ◽  
Author(s):  
Aboli Kulkarni ◽  
Surajit Roy ◽  
M. Yogeshwaran ◽  
Bhushan Shigwan ◽  
Smrithy Vijayan ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Chemistry ◽  
Western Ghats ◽  
Ionic Concentration ◽  
Rock Pools ◽  
Wide Range ◽  
Geographical Position ◽  
Anions And Cations ◽  
The Western Ghats

Abstract The freshwater rockpools support high endemic biodiversity but are poorly studied habitats in the Western Ghats biodiversity hotspot. These freshwater rock pools are situated on outcrops at various elevations in the Western Ghats and are composed of different bedrocks such as laterite and basalt. We aimed to analyze the water quality, geographical position based differences in the water chemistry and the role of bedrock in determining the water chemistry of the rock pools. Our study showed a wide range of water quality variables such as pH, conductivity, and ionic contents that attributed to the natural variation. We observed a drastic variation in the anions and cations at low elevation pools. Rock type and precipitation are influencing the ionic concentration, for example, Calcium and Bromide could be attributed to the seasonal precipitation and geomorphology. This documentation of physicochemical properties of the Western Ghats rock pools can form a baseline for further detailed studies.

scholarly journals Monitoring of adult aquatic insect activities and ecological role in the riparian zone of streams in the Western Ghats, India

2016 ◽  
Vol 4 (3) ◽  
pp. 460
Author(s):  
T. Kubendran ◽  
M. Ramesh
Keyword(s):  
Aquatic Insects ◽  
Western Ghats ◽  
Riparian Zone ◽  
Food Resource ◽  
Aquatic Insect ◽  
Ecological Role ◽  
Freshwater Biodiversity ◽  
The Western Ghats ◽  
Adult Aquatic Insects

<div><p><em>The Western Ghats, running parallel to the west coast of India between 8° N and 21° N is a prominent feature of the peninsular India. In freshwater biodiversity hotspots like the Western Ghats, no information is available on activates and ecological role of adult aquatic insect in the riparian zone of streams.</em><strong><em> </em></strong><em>Most adult aquatic insects that emerge from streams live briefly in the nearby riparian zone. Adult activities, such as mating dispersal and feeding influence their distribution in the terrestrial habitat. An observation at Kurangani streams, Western Ghats, India has shown that both numbers and biomass of adult aquatic insects are greatest in the near stream vegetation; however, adult insects can be relatively common 1 to 10 feet from the stream. Why because, adult aquatic insects are abundant and they are primary food resource for many riparian insectivores. The role of adult aquatic insects in the riparian zone must be better understood for riparian and aquatic food chain to be complete. </em></p></div>

scholarly journals Effect of cloud microphysics on Indian summer monsoon precipitating clouds: A coupled climate modeling study

2017 ◽  
Vol 122 (7) ◽  
pp. 3786-3805 ◽  
Author(s):  
Anupam Hazra ◽  
Hemantkumar S. Chaudhari ◽  
Subodh K. Saha ◽  
Samir Pokhrel
Keyword(s):  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Climate Modeling ◽  
Cloud Microphysics ◽  
Precipitating Clouds ◽  
Modeling Study

Indian summer monsoon drought 2009: role of aerosol and cloud microphysics

2013 ◽  
Vol 14 (3) ◽  
pp. 181-186 ◽  
Author(s):  
A. Hazra ◽  
S. Taraphdar ◽  
M. Halder ◽  
S. Pokhrel ◽  
H. S. Chaudhari ◽  
...  
Keyword(s):  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Cloud Microphysics

Indian summer monsoon precipitating clouds: role of microphysical process rates

2015 ◽  
Vol 46 (7-8) ◽  
pp. 2551-2571 ◽  
Author(s):  
Anupam Hazra ◽  
Hemantkumar S. Chaudhari ◽  
Samir Pokhrel ◽  
Subodh K. Saha
Keyword(s):  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Microphysical Process ◽  
Precipitating Clouds
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