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Prakash, T. N.
- Sustainable Development of Heavy Mineral Resources of Chavara
Abstract Views :188 |
PDF Views:115
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Affiliations
1 Center for Earth Science Studies, Thiruvananthapuram-695 031, IN
1 Center for Earth Science Studies, Thiruvananthapuram-695 031, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 51, No 1 (1998), Pagination: 114-115Abstract
No Abstract.Full Text
- Seasonal Beach Changes Along Quilon District Coast, Kerala
Abstract Views :195 |
PDF Views:3
Authors
Affiliations
1 Marine Science Division, Centre for Earth Science Studies, Sasthamangalam, Trivandrum 695010, IN
1 Marine Science Division, Centre for Earth Science Studies, Sasthamangalam, Trivandrum 695010, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 29, No 4 (1987), Pagination: 390-398Abstract
Based on the beach profile studies along the Quilon coast during the year 1980-81, accretional and erosional areas were demarcated in the southern and northern sector of the Neendakara outlet. A net gain of 0.194 m3 of sand in the southern sector and loss of 0.374 mimon m3 in northern sector was noticed. There is marked variation in mean grain size, sorting and foreshore slope in these two sectors. Reversal of longshore current from north to south, increase of breaker height and human activity have been found to be responsible for overall beach changes along the coast.
- Indigenous Technical Knowledge (ITK) and Farmers Willingness to Practice- An Economic Study of Arecanut Peeling Machines in Karnataka
Abstract Views :291 |
PDF Views:0
Authors
Affiliations
1 Department of Agricultural Economics, University of Agricultural Sciences, BENGALURU (KARNATAKA), IN
2 Department of Agricultural Economics, University of Agricultural Sciences, BENGALURU (KARNATAKA), IN
1 Department of Agricultural Economics, University of Agricultural Sciences, BENGALURU (KARNATAKA), IN
2 Department of Agricultural Economics, University of Agricultural Sciences, BENGALURU (KARNATAKA), IN
Source
International Research Journal of Agricultural Economics and Statistics, Vol 6, No 2 (2015), Pagination: 307-316Abstract
The Innovations are the outcome of survival strategies of the disadvantaged people in the risk prone and vulnerable regions. Over a period of time, a vast repository of knowledge and techniques, labeled as 'Indigenous Technologies and Knowledge' (ITKs) has been accumulated. It is based on experience, often tested over centuries of use, adapted to local culture, environment and dynamics. Indigenous knowledge is found to be socially desirable, economically affordable, sustainable and involve minimum risk to research users and widely believed to conserve resources. This study makes attempt to evaluate the socio-economic profiles of the grass ischolar_main level innovation related to arecanut in Karnataka. It was found that, the cost of peeling in machine is much more economical than the manual method of peeling in arecanut. Further, about 80 of sample farmers are willing to buy or hire the arecanut-peeling machine in the study region. However, high cost of machines, lower efficiency followed by non-suitability of machine for all sizes of nuts were the major constraints faced by the farmers in mechanical method of arecanut processing.Keywords
Indigenous Technical Knowledge, Arecanut Processing, Farmers Willingness, Honey Bee Network, the National Innovation Foundation.- South Asian Subtropical Low-Level Jet:Influence on Regional Hydrology and Aerosol Optical Depth
Abstract Views :245 |
PDF Views:90
Authors
Affiliations
1 National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram 695 011, IN
2 University of Hyderabad, Central University P.O., Prof. C.R. Rao Road, Gachibowli, Hyderabad 500 046, IN
1 National Centre for Earth Science Studies, Akkulam, Thiruvananthapuram 695 011, IN
2 University of Hyderabad, Central University P.O., Prof. C.R. Rao Road, Gachibowli, Hyderabad 500 046, IN
Source
Current Science, Vol 117, No 5 (2019), Pagination: 852-858Abstract
A 38-year high-resolution wind climatology shows a consistent occurrence of hitherto unreported South Asian subtropical low-level jets (SASLLJs) over the 31°–35°N and 60°–62°E latitude–longitude region, occurring throughout the year are the northerly LLJs (NLLJs) and southerly LLJs (SLLJs). The NLLJ is persistent mostly during the monsoon season. The NLLJ is frequent, unlike the SLLJ. The synoptic heat low in South Asia (62°–66°E and 27°–32°N) and the anticyclone over Turkmenistan (40°–50°N and 50°– 60°E) are critical in inducing the NLLJ. Regional topography permits direct mid-latitude air intrusion into the subtropical region. Importantly, we find that the NLLJ results in enhancing the transportation of dust to the Indian subcontinent and the northern part of the Arabian Sea due to wind blows. Long-term NLLJ intensity displays waning trend because of the weakening of pressure gradients between the heat low in South Asia and over Turkmenistan.Keywords
Aerosol Optical Depth, Low-Level Jet, Regional Hydrology, Rainfall.Full Text
References
- Joseph, P. V. and and Sijikumar, S., Intraseasonal variability of the low-level jet stream of the Asian summer monsoon. J. Climate, 2004, 17, 1449–1458.
- Zou, H. et al., Local wind system in the Rongbuk Valley on the northern slope of Mt. Everest. Geophys. Res. Lett., 2008, 35, L13813.
- Yu, Y., Notaro, M., Kalashnikova, O. V. and Garay, M. J., Climatology of summer Shamal wind in the Middle East. J. Geophys. Res. Atmos., 2016, 121, 289–230.
- Stensrud, D. J., Importance of low-level jets to climate: a review. J. Climate, 1996, 9, 1698–1711.
- Membery, D. A., Low level wind profiles during the Gulf Shamal. Weather, 1983, 38, 18–24.
- Gadgil, S., The Indian monsoon and its variability. Annu. Rev. Earth Planet. Sci., 2003, 31(1), 429–467.
- Gadgil, S. and Gadgil, S., The Indian monsoon, GDP and agriculture. Econ. Polit. Wkly., 2006, 41(47), 4887–4895.
- Findlater, J., A major low-level air current near the Indian Ocean during the northern summer. Q. J. R. Meteorol. Soc., 1969, 95, 362–380.
- Liu, M., Westphal, D. L., Holt, T. R. and Xu, Q., Numerical simulation of a low-level jet over complex Terrain in Southern Iran. Mon. Weather Rev., 2000, 128, 1309–1327.
- Alizadeh-Choobari, Zawar-Reza, P. and Sturman, A., The ‘wind of 120 days’ and dust storm activity over the Sistan Basin. Atmos. Res., 2014, 143, 328–341.
- Ramaswamy, V., Muraleedharan, Babu, P. M. and Prakash, C., Mid-troposphere transport of middle-east dust over the Arabian sea and its effect on rainwater composition and sensitive ecosystems over India. Sci. Rep., 2017, 7, 1–8.
- Gadgil, S., The Indian monsoon – how do we get rain? Resonance, 2006, 11, 8–21.
- Lau, W. K. M., Waliser, D. E. and Goswami, B. N., South Asian monsoon. In Intraseasonal Variability in the Atmosphere–Ocean Climate System, Springer Praxis Books, Springer, Berlin, Germany, 2012, pp. 21–72.
- Neiman, P. J., Ralph, F. M., White, A. B., Kingsmill, D. E. and Persson, P. O., The statistical relationship between upslope flow and rainfall in California’s coastal mountains: observations during CALJET. Mon. Weather Rev., 2002, 130, 1468–1492.
- Panziera, L. and Germann, U., The relation between air flow and orographic precipitation on the southern side of the Alps as revealed by weather radar. Q. J. R. Meteorol. Soc., 2010, 136, 222–238.
- Vinoj, V., Rasch, P. J., Wang, H., Yoon, Jin-Ho, Landu, K., Singh, B. and Ma, Po-Lun, Short-term modulation of Indian summer monsoon rainfall by West Asian dust. Nature Geosci., 2014, 7, 308–313.
- Platnick, S. et al., MODIS Atmosphere L3 Daily Product. NASA MODIS Adaptive Processing System, Goddard Space Flight Center, USA, 2015; http://dx.doi.org/10.5067/MODIS/MOD08_D3.006.
- Huffman, G. J. et al., The TRMM Multisatellite Precipitation Analysis (TMPA): quasi-global, multiyear, combined-sensor precipitation estimates at fine scales. J. Hydrometeorol., 2007, 8, 38– 55.
- Dee, D. P. et al., The ERA-interim reanalysis: configuration and performance of the data assimilation system. Q. J. R. Meteorol. Soc., 2011, 137, 553–597.
- Saha, S. et al., The NCEP climate forecast system reanalysis. Bull. Am. Meteorol. Soc., 2010, 91, 1015–1057.
- Rao, Y. P., Meteorological Monograph Synoptic Meteorology, No. 1/1976: South West Monsoon, India Meteorological Department, 1979, pp. 1–379; http://imdpune.gov.in/Weather/Reports/sw%20monsoon%20whole%20book.pdf
- Pant, G. and Kumar, K., Climates of South Asia, John Wiley, Hoboken, NJ, USA, 1997.
- Tyrlis, E., Lelieveld, J. and Steil, B., The summer circulation over the eastern Mediterranean and the Middle East: influence of the South Asian monsoon. Climate Dyn., 1997, 40, 1103.
- Najafi, M. S., Sarraf, B. S. and Zarrin, A., Climatology of atmospheric circulation patterns of Arabian dust in western Iran. Environ. Monit. Assess., 2017, 189, 473.
- Bollasina, M. and Nigam, S., The summertime ‘heat’ low over Pakistan/Northwestern India: evolution and origin. Climate Dyn., 2011, 37, 957–970.
- Krishnan, R., Kumar, V., Sugi, M. and Yoshimura, J., Internal feedbacks from monsoon–midlatitude interactions during droughts in the Indian summer monsoon. J. Atmos. Sci., 2009, 66(3), 553–578.
- Anoop, T. R. et al., On the generation and propagation of Makran swells in the Arabian Sea. Int. J. Climatol., 2019, 1–9.