Winter frequency of western disturbances and precipitation indices over Himachal Pradesh, India: 1977-2007
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2015
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| _version_ | 1876443590494781440 |
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| author | NARESH KUMAR |
| author_facet | NARESH KUMAR |
| contents | Winter frequency of western disturbances and precipitation indices over Himachal Pradesh, India: 1977-2007 NARESH KUMAR B. P. YADAV SHILPA GAHLOT MANMOHAN SINGH Biología precipitation Himachal Pradesh western disturbances The Himalayas have an important role in Indian weather and climate, since they control the western distur - bances (WDs) during winter and the southwest monsoon during summer. During the winter months (December to March), westerly winds associated with WDs cause precipitation, sometimes along with heavy snowfall, extensive avalanches, etc., over Himachal Pradesh. Therefore, this study examined the temporal variability in the winter months frequency of WDs and various precipitation indices like wet days, rainy days, rather heavy and heavy precipitation days, and precipitation intensity during 1977 to 2007 over Himachal Pradesh. The study also examined synoptic features associated with intense WDs that caused heavy precipitation over the region during the same period. Analysis of data reveals a statistically significant (confidence level > 95%) decreasing trend in the frequency of WDs over this region. Since winter precipitation in Himachal Pradesh mainly occurs due to WDs, total winter precipitation and frequency of rather heavy and heavy precipitation days have decreased over the region. The analysis also shows a decrease of about 25% in heavy precipitation days and of 13% in total winter precipitation from their respective mean (from 1977 to 2007) over Himachal Pradesh. 2015 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56532983006 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.28 |
| format | Artículo científico |
| id | redalyc_56532983006 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Winter frequency of western disturbances and precipitation indices over Himachal Pradesh, India: 1977-2007 NARESH KUMAR Biología precipitation Himachal Pradesh western disturbances Winter frequency of western disturbances and precipitation indices over Himachal Pradesh, India: 1977-2007 NARESH KUMAR B. P. YADAV SHILPA GAHLOT MANMOHAN SINGH Biología precipitation Himachal Pradesh western disturbances The Himalayas have an important role in Indian weather and climate, since they control the western distur - bances (WDs) during winter and the southwest monsoon during summer. During the winter months (December to March), westerly winds associated with WDs cause precipitation, sometimes along with heavy snowfall, extensive avalanches, etc., over Himachal Pradesh. Therefore, this study examined the temporal variability in the winter months frequency of WDs and various precipitation indices like wet days, rainy days, rather heavy and heavy precipitation days, and precipitation intensity during 1977 to 2007 over Himachal Pradesh. The study also examined synoptic features associated with intense WDs that caused heavy precipitation over the region during the same period. Analysis of data reveals a statistically significant (confidence level > 95%) decreasing trend in the frequency of WDs over this region. Since winter precipitation in Himachal Pradesh mainly occurs due to WDs, total winter precipitation and frequency of rather heavy and heavy precipitation days have decreased over the region. The analysis also shows a decrease of about 25% in heavy precipitation days and of 13% in total winter precipitation from their respective mean (from 1977 to 2007) over Himachal Pradesh. 2015 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56532983006 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.28 |
| title | Winter frequency of western disturbances and precipitation indices over Himachal Pradesh, India: 1977-2007 |
| topic | Biología precipitation Himachal Pradesh western disturbances |
| url | https://www.redalyc.org/articulo.oa?id=56532983006 |