Study of annual mass balance(2011–2013) of Rikha Samba Glacier,Hidden Valley,Mustang, Nepal     

Sanjaya Gurung  Bikas C. Bhattarai  Rijan B. Kayasth  Dorothea Stumm  Sharad P. Joshi  Pradeep K. Mool 《寒旱区科学》2016,8(4):311-318

Although Himalayan glaciers are of particular interest in terms of future water supplies, regional climate changes, and sea-level rises, little is known about them due to lack of reliable and consistent data. There is a need for monitoring these glaciers to bridge this knowledge gap and to provide field measurements necessary to calibrate and validate the results from different remote sensing operations. Therefore, glaciological observations have been carried out by the Cryosphere Monitoring Project(CMP) since September 2011 on Rikha Samba Glacier in Hidden valley, Mustang district in western Nepal in order to study its annual mass balance. This paper presents the first results of that study. There are 10 glaciers in Hidden Valley, named G1, G2, G3, up to G10. Of these, G5 is the Rikha Samba Glacier, which has the largest area(5.37 km2) in this valley and the highest and lowest altitudes(6,476 and 5,392 m a.s.l., respectively). The glacier mass balance discussed in this paper was calculated using the glaciological method and the equilibrium line altitude(ELA). The glacier showed a negative annual point mass balance along the longitudinal profile of its lower part from September 10, 2011 to October 3, 2012. Stake measurements from October 4, 2012 to September 30, 2013 indicated a negative areal average of annual mass balance-0.088±0.019 m w.e. for the whole glacier. Based on these observations, the ELA of the Rikha Samba Glacier is estimated at 5,800 m a.s.l. in 2013. This negative balance may be due to rising air temperatures in the region, which have been incrementally rising since 1980 accompanied by little or no significant increase in precipitation in that period. The negative mass balance confirms the general shrinking trend of the glacier.  相似文献   

Private non-degree practitioners and spatial access to out-patient care in rural India     

Vikram Ranga  Pradeep Panda 《GeoJournal》2016,81(2):267-280

Most rural areas in the developing countries lack access to qualified out-patient (OPD) care. The gap in health services provision arises, due to lack of qualified doctors and is oftentimes filled by unqualified doctors who are also known as private non-degree practitioners (PNDPs). Despite their dominance, their presence is often neglected in access to health care studies. This leaves a scenario which lacks informal, but predominant, care. This paper uses a mix-method approach, combining exhaustive quantitative census of all health care providers along with location details in Geographic Information System to address the accessibility to PNDP. Longitudinal quantitative as well as spatial surveys were conducted for 3 years (2010, 2012 and 2013) in districts of Pratapgarh and Kanpur Dehat in state of Uttar Pradesh and Vaishali in Bihar state. The results of this study show that PNDPs account for 25 % of the all health care providers active across the study areas. The PNDPs are active in a radius of 2–5 km and are main workforce for the OPD care. Considering all health care providers PNDPs provide best potential accessibility to OPD care. If the PNDPs are removed from the scenario; remote areas will be the most affected ones, leaving them with almost no OPD care.  相似文献   

Alteration of volcanic glass to well-crystallized ferrosaponite in the vesicles of the Deccan trap basalts at Bhuleshwar Ghat section,Pune district,Maharashtra     

Pradeep K. Sarkar  Devdutt V. Upasani  Vibhuti Wani 《Journal of the Geological Society of India》2016,88(1):22-28

Clay minerals formed mainly by the alteration of volcanic glass are reported by many workers. The commonly formed minerals belonging to the smectite group especially nontronite and ferrosaponite are widely reported by many in basalts. However, most of the reports suggest the formation of ferrosaponite in marine conditions (Zhou et al., 1992; Chen et al., 1996) or by hydrothermal solutions (Shayan et. al., (1988)). Origin of ferrosaponite in continental flood basalts by a mechanism of alteration of volcanic glass to ferrosaponite is reported in the paper. The different stages involved in the alteration process are also highlighted.  相似文献   

Discovery of <Emphasis Type="Italic">Elephas</Emphasis> cf. <Emphasis Type="Italic">namadicus</Emphasis> from the late Pleistocene strata of Marginal Ganga Plain     

Rupa Ghosh  R. K. Sehgal  Pradeep Srivastava  U. K. Shukla  A. C. Nanda  D. S. Singh 《Journal of the Geological Society of India》2016,88(5):559-568

We describe an elephant skull recovered from a cliff section of Dhasan river of Marginal Ganga Plain. The dental morphology and cranial features of the skull have been compared with the known species of Elephas from the Indian subcontinent. Although it shows very near resemblance to Elephas namadicus, but being an isolated specimen its specific identity cannot be proclaimed with certainty. As such, the specimen is provisionally referred as E. cf. namadicus. The Optically Stimulated Luminescence ages place this find at ~56 ka BP. This is the first chronologically well constrained report of E. cf. namadicus from the Ganga Plain.  相似文献   

Dispersion of methane in tailgate of a retreating longwall mine: a computational fluid dynamics study     

Devi Prasad Mishra  Pradeep Kumar  Durga Charan Panigrahi 《Environmental Earth Sciences》2016,75(6):475

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Reliability Analysis of Quick Sand Condition     

Pijush Samui  Pradeep Kurup  S. Dhivya  J. Jagan 《Geotechnical and Geological Engineering》2016,34(2):579-584

First order reliability method (FORM) is generally used for reliability analysis in geotechnical engineering. This article adopts generalized regression neural network (GRNN) based FORM, Gaussian process regression (GPR) based FORM and multivariate adaptive regression spline (MARS) based FORM for reliability analysis of quick sand condition. GRNN is related to the radial basis function (RBF) network. GPR is developed based on probabilistic framework. MARS is a nonparametric regression technique. A comparative study has been carried out between the developed models. The performance of GPR based FORM and MARS based FORM match well with the FORM. This article gives the alternative methods for reliability analysis of quick sand condition.  相似文献   

An innovative artificial recharge system to enhance groundwater storage in basaltic terrain: example from Maharashtra,India     

Vijay Bhusari  Y. B. Katpatal  Pradeep Kundal 《Hydrogeology Journal》2016,24(5):1273-1286

The management of groundwater poses challenges in basaltic terrain as its availability is not uniform due to the absence of primary porosity. Indiscriminate excessive withdrawal from shallow as well as deep aquifers for meeting increased demand can be higher than natural recharge, causing imbalance in demand and supply and leading to a scarcity condition. An innovative artificial recharge system has been conceived and implemented to augment the groundwater sources at the villages of Saoli and Sastabad in Wardha district of Maharashtra, India. The scheme involves resectioning of a stream bed to achieve a reverse gradient, building a subsurface dam to arrest subsurface flow, and installation of recharge shafts to recharge the deeper aquifers. The paper focuses on analysis of hydrogeological parameters like porosity, specific yield and transmissivity, and on temporal groundwater status. Results indicate that after the construction of the artificial recharge system, a rise of 0.8–2.8 m was recorded in the pre- and post-monsoon groundwater levels in 12 dug wells in the study area; an increase in the yield was also noticed which solved the drinking water and irrigation problems. Spatial analysis was performed using a geographic information system to demarcate the area of influence of the recharge system due to increase in yields of the wells. The study demonstrates efficacy, technical viability and applicability of an innovative artificial recharge system constructed in an area of basaltic terrain prone to water scarcity.  相似文献   

An assessment of Dungale landslide using remotely piloted aircraft system (RPAS), ground penetration radar (GPR), and Slide & RS2 Softwares     

Tandon  Ruchika Sharma  Gupta  Vikram  Venkateshwarlu  Bhimala  Joshi  Pradeep 《Natural Hazards》2022,113(2):1017-1042

Natural Hazards - In the present study, slope stability analysis was done using limit equilibrium method and finite element method of the Dungale landslide situated in the NW Himalaya along Tons...  相似文献   

Prediction of Rock Strain Using Hybrid Approach of Ann and Optimization Algorithms   总被引：1，自引：0，他引：1  

Pradeep  T.  Samui  Pijush 《Geotechnical and Geological Engineering》2022,40(9):4617-4643

Geotechnical and Geological Engineering - Prediction of strain is one of the important factors for assessment of characteristics of rock material. Rock strata are mostly more brittle in nature....  相似文献   

Comment on Zhang Y., Ye S., and Wu J. 2011. A modified global model for predicting the tritium distribution in precipitation, 1960–2005. Hydrological Processes 25:2379–2392     

Brent D. Newman  Luis J. Araguás‐Araguás  Pradeep K. Aggarwal 《水文研究》2013,27(8):1286-1287

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