Meteorological drought

The assessment results on the degree of meteorological drought in Thai Nguyen province are the scientific basis for the arrangement and restructuring of the crop in agricultural production and making important contributions to the prevention and mitigation of drought natural disasters.

10p vimaryamnawaz 04-08-2022 3 1   Download

Drought is a phenomenon related to water shortage that affects various aspects of life, economy and environment. The Vietnamese Mekong Delta (VMD) of Vietnam has recently experienced more frequent extreme weather events, notably drought. Nevertheless, few studies have focused on drought monitoring in this region.

4p viwendy2711 05-10-2021 12 1   Download

Research objective: Assess drought development, build an early warning model of meteorological drought for the purpose of exploitation and management of water resources in the Central Coastal region.

27p hobbsandshaw 09-06-2021 19 3   Download

Binh Thuan, located at the South Central, is one of two driest provinces in Vietnam. Meteorological drought has been more widespread and hash. The drought zoning will be fundamentals of building drought scenarios and propose suitable adaptive solutions.

11p vijichoo2711 04-06-2021 22 1   Download

In rainfed agriculture, rainfall has a crucial role to play for suitable crop planning. One hundred nineteen years (1901-2019) annual rainfall data has been analysed to find out yearly meteorological drought occurrence at Damoh district shows that maximum rain 1874.6 mm is in1990 and minimum rainfall is 614 mm in 1993. Annual average rainfall is 1196 mm.

9p trinhthamhodang1216 19-11-2020 13 1   Download

In this study, the author assessed the risk of drought at Tien river estuary through two indices: Normalize Difference Vegetation Index (NDVI) and Standardized Precipitation Index (SPI) during the dry season months of 1991, 2001, 2010 and 2018. SPI values are interpolated to construct spatial modeling of meteorological drought levels.

10p koxih_kothogmih5 04-09-2020 16 1   Download

The article deals with the issues of meteorological drought in the coastal area of the estuary of the Tien river, including Tien Giang and Ben Tre provinces, which have favorable climatic conditions for agricultural development. In the context of climate change, drought often happens, seriously affecting the local economy. In order to estimate the drought level, scientists have come up with many approaches to calculate drought indices for different regions and territories around the world.

10p nguathienthan6 06-07-2020 10 0   Download

The agricultural drought has become a major concern worldwide because of its severe effect on the productivity of rain-fed crops and direct effect on service as well as per capita income. These agricultural droughts occur due to short-term moisture stresses. This work was carried out to analyze droughts in the Banswara region of Rajasthan using Effective Drought Index (EDI). Out of the 11 rain gauge station selected in the study, it was found that according to EDI, a meteorological drought of maximum severity -34.

10p kethamoi5 03-06-2020 23 0   Download

Drought is universally acknowledged as a phenomenon associated with scarcity of water. The Standardized Precipitation Index (SPI) expresses the actual rainfall as standardized departure from rainfall probability distribution function. In this study severity and spatial pattern of meteorological drought was analyzed in the Anantapuramu District, Andhra Pradesh, India using multi-temporal SPI.

9p cothumenhmong5 17-05-2020 11 1   Download

This article presents the results of detecting the trend of drought conditions in the South-Central region based on the past observation and bias-correction rainfall projections. The past observation of daily rainfall is updated up to 2017 and collected from Vietnam Meteorological and Hydrological Administration. The bias-correction daily rainfall projections are collected from Vietnam Institute of Meteorology, Hydrology and Climate change (IMHEN) during the periods of 1986 - 2005, 2016 - 2035, 2036 - 2065 and 2080 - 2099 according to both RCP4.5 and RCP8.5 scenarios.

10p quenchua5 14-05-2020 20 0   Download

The water resources sector is one of the key sectors facing several challenges in the context of burgeoning population and large scale unsustainable exploitation which will have its consequences for our future generations. More and more areas have to be brought under agriculture to provide the food security to the growing population. The unplanned interventions in the form of deforestation and conversion of forest areas into agricultural land and conversion of agriculture areas to urban centres have its own set of impacts.

12p chauchaungayxua4 18-03-2020 26 2   Download

Drought is one of the natural disasters of tremendous significance owing to intensity, duration, magnitude, financial damage and long-term impacts in comparison with other disasters. The evaluation of drought is aimed at identifying the onset, continuity and severity of drought. Reliable surveillance of drought and early warning are essential in preparing for drought, planning and mitigating future effects, particularly early warnings of famine.

10p cothumenhmong3 22-02-2020 25 0   Download

Meteorological drought is a natural hazard that can occur under all climatic regimes. Monitoring the drought is a vital and important part of predicting and analyzing drought impacts. In the present study, monthly time series of rainfall data (1980–2016) from five stations were used to derive SPI, particularly at 3-month time scales. This 3-month SPI was interpolated to depict temporal patterns of meteorological drought and its severity during 2014 and 2016 years. SPI was more efficient than departure in spatial analysis of drought.

8p chauchaungayxua3 07-02-2020 16 0   Download

Rainfall assessment plays a major role in designing the mitigation measures and getting the sustainable yield in the dry lands. Weather cock software was used for the analysis and incomplete gamma test was conducted for measuring the probability of rainfall occurrence. Rainfall assessment of the Northern Transitional Zone has observed that, the zone has been often prone to meteorological and agricultural drought. 21st to 24th and 31 to 34th weeks are often prone to drought in Kharif and 41st to 47th weeks are affected in Rabi.

11p nguaconbaynhay3 07-02-2020 12 1   Download

Drought is an abnormal condition resulting due to a decrease in rainfall. The occurrence of drought is unpredictable and causes unprecedented damage to the production of crop and livelihood. The present study has been conducted to assess the meteorological drought situation in Ujjain district using Effective Drought Index (EDI). For assessment six rain gauge station situated in the study area is selected. Out of which station namely Barnagar, Ghatiya and Tarana have maximum extreme drought event with 8, 7, and 3 respectively.

9p quenchua2 18-12-2019 13 0   Download

Drought analysis offers a better scope for predicting the occurrence of drought to help in crop planning in rainfed regions. In view of this, an attempt has been made to evaluate drought reoccurrence patterns of weekly, seasonal, monthly and annual rainfall according to the severity, based on 17 years (2000-2016) data of Mungeli, Chhattisgarh. The observed data shows that 38th and 39th standard meteorological week experienced maximum (58.82 %) disaster drought and followed by SMW 24th and 26th. It was also observed that no drought condition was experienced maximum 52.94 in SMW 32nd.

9p kethamoi2 14-12-2019 8 0   Download

During the period of observation, the percent of meteorological drought area in Hanoi city increased from the 1980s (13%). The highest drought area of 54% total areas was affected by drought in the hydrological year of 1992-1993, when the area experienced its most severe drought both in terms of area and severity.

7p thihuynh3006 16-03-2018 53 0   Download

Monthly rainfall data given by surface meteorological observations during the period 1961-2007 in Central Vietnam is used to calculate drought indices. Results show that drought conditions slightly increase in North Central Vietnam but decrease in South Central and Highland Central Vietnam. Significant drought periods often occur from January to March. The percentage of dry years during the period 1961-2007 is larger than that in the reference period of 1961-1990 in North Central while smaller in South Central and almost similar to that in Highland Central Vietnam.

7p dem_thanh 22-12-2012 52 4   Download