[1] The optically thick aerosol layer along the southern edge of the Himalaya has been subject of several recent investigations relating to its radiative impacts on the South Asian summer monsoon and regional climate forcing. Prior to the onset of summer monsoon, mineral dust from southwest Asian deserts is transported over the Himalayan foothills on an annual basis. Episodic dust plumes are al...

Drawdown of atmospheric carbon dioxide (CO2) due to silicate weathering in the Himalaya has previously been implicated Cenozoic cooling. However, over timescales shorter than that removal marine sulfate (SO42−), oxidation pyrite (FeS2) systems can counteract alkalinity flux and modulate pCO2. Here we present evidence from 34S/32S isotope ratios dissolved SO42− (δ34SSO4), together with major ion...

effect of fire on phyto-sociology of understorey vegetation in chir pine forests of three different silvological characteristics was compared with pure grassland. 15 grasses, 1 sedge, 5 legumes and 21 non-legumes were recorded in the four study sites. floristic composition gradually increased from june to august and then declined slowly by october in all the plots. maximum number of species was...

In recent years the frequency of cloud burst has increased tremendously and global temperature rise is considered to be among the major causes for the devastating flood. The mean temperature of the earth has increased 0.75° C since nineteenth century, which resulted in faster evaporation rate from high altitude glacial lakes, an important causes of frequent cloud burst in the high altitude regi...

Abstract Acritarch biostratigraphic and δ 13 C chemostratigraphic data from the Krol A Formation in Solan area (Lesser Himalaya, northern India) are integrated to aid inter-basinal correlation of early–middle Ediacaran strata. We identified a prominent negative excursion (likely equivalent EN2 lower Doushantuo Yangtze Gorges South China), over dozen species acanthomorphs (including two new spec...

Determining the rate of CO2 consumption associated with Himalayan uplift is an essential prerequisite to understanding climate evolution throughout Cenozoic. The riverine fluxes dissolved calcium can be used quantify uptakes atmospheric by chemical weathering, but this approach requires deciphering silicate-derived Ca flux from generally dominant carbonate-derived flux. Here we present high-pre...

The Shuttle Radar Topography Mission (SRTM) Digital Terrain Elevation Data (DTED) are used with the consensus view that it has a minimum vertical accuracy of 16 m absolute error at 90% confidence (Root Mean Square Error (RMSE) of 9.73 m) world-wide. However, vertical accuracy of the data decreases with increase in slope and elevation due to presence of large outliers and voids. Therefore, studi...

Eugenia jambolana is a traditional medicinal plant of low reaches of Kumaun Himalaya. The tribal inhabitants of Himalaya use the plant for curing diabetes and abdominal pain of peptic ulcers. The leaves of the plant were collected from Tarai regions of Himalaya. About 2 kg dried and powdered sample of the leaves was extracted with 50% aqueous methanol and extract obtained was concentrated under...