The highest frequencies of dry period were 60.00% in Syedpur and 44.44% in Rangpur. Table 1: Standardized Precipitation Index (SPI) values. Team; Annual Work Plan; Meeting; NIS. This study provides a broad knowledge about spatial and temporal variations of meteorological droughts over different regions of Bangladesh during the period 1980-2015. Meteorological drought assessment of central region. Int J Mod Eng Res 3: 2407–2411, Trends in meteorological and agricultural droughts in Iran. Some of the broadly used drought indices include Palmer Drought Severity Index (PDSI), Surface Water Supply Index (SWSI), Standardized Precipitation Index (SPI), Reclamation Drought Index (RDI) and Crop Moisture Index (CMI). DEPARTMENT OF METEOROLOGY AND HYDROLOGY (MYANMAR). Heavy Rainfall Warning (No.02/2020) DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. Issued at (15:00) hours M.S.T on 16- 9-2020 Dew-Drop. Data and methodology. Earth Interact 16: 1–27, Monitoring meteorological and agricultural drought dynamics in Barind region Bangladesh using standard precipitation index and Markov chain model. I, Global environmental change 37: 309-346, Application of Palmer method in analyzing drought in Northwest region of Bangladesh, M.Sc. Figures 1-3 presented the changes and linear trends of drought areas (SPEI ≤ 1) from 1980 to 2015 over three cropping seasons (Pre- Kharif, Kharif and Rabi) of different regions of Bangladesh. • The meteorological activities started in this country in 1877 through the establishment of one observatory in Satkhira … Jalpa and Parekh [12] studied various drought indexes and concluded that SPI permits comparisons over space and time better than any other index. All Rights Reserved. Monthly data of average rainfall over Bangladesh have been collected for a maximum period of 64 years, 1948–2011. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. [23] to determine the cumulative probability. After that, obtained SPI value was classified according to the drought classification of World Meteorological Organization (Table 1). Abundant rainfall (monthly average 595.12 mm) during the monsoon … It is the principal agency responsible for meteorological observations, weather forecasting and seismology. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. This type of analysis will clearly help to identify the intensity of drought in the study region. The Bangladesh Meteorological Department (BMD) maintains 34 hydrometeorological observatories in the country where observation, recording and archiving of rainfall data are done. Meteorological drought; Rainfall data; Spatial analysis; SPI" />. The temporal and spatial variation of meteorological drought in the study area has been identified using SPI in multiple time scales. Seasonal variation of droughts in different region of Bangladesh. Annual total rainfall in Khulna was increasing by 4.960 mm/year with its total rainfall 1630 mm and coefficient of determination was 0.050. Eastern region shows decreasing trend with a rate of 2.19% per 10 years. Major finding of this study was Pre-Kharif and Rabi season were the most vulnerable to meteorological drought that indicates high seasonal rainfall anomaly in most of the regions of Bangladesh. Published Date: Mar 27, 2018. The cumulative probability is given by: Letting, this equation becomes the incomplete gamma function: Since the gamma function is undefined for x=0 and a precipitation distribution may contain zeros, the cumulative probability becomes: H (x) = q + (1− q)G(x) [22] states that q can be estimated by q = m / n , where q is the probability of a zero. Monthly precipitation data of 35 meteorological stations were taken from Bangladesh Meteorological Department for a maximum period of 36 years from 1980 to 2015. The SPI computation for a specific time scale and location requires a long term monthly precipitation data. Department of Meteorology and Hydrology (Myanmar) To develop map and the spatial extents of drought hazards in different time steps, a study was carried out by Shamsuddin and Behrawan [9] using Standardized precipitation index [10,11] method. To analyze the variations of the drought areas, linear regression methods were used to detect the changing trend of the annual percentage of drought area at different significance levels for the different regions of Bangladesh. IJCCSM 4,1 66 Received 6 November 2010 Revised 9 April 2011 ... 3.2 Monthly rainfall simulation over Bangladesh Surface area average rainfall data collected by BMD have been used for the comparison with model simulated rainfall. BMD Service Users List; Organogram; Contact Us . Meteorological drought is directly related to rainfall which prolongs existence consequence the agricultural drought [2]. The base data for this work has been collected from Bangladesh Meteorological Department. American Meteorological Society: Anaheim, CA 179–184, Drought monitoring with multiple time scales. Daily Rainfall Data . Field Value; Modified Date: 2018-05-10. Unusually heavy monsoon rainfall and flooding is affecting India and neighbouring South Asian countries, as well as China and Japan. 23 July 2001 cambridge University Press, cambridge, England, UK Signal.! Bhola and Maijdi court, respectively was found in Kutubdia ( Table 2 ) the Other hand highest. By moderate, severe and moderate drought was happened in Khulna and Satkhira during seasons! Rajshahi and Rangpur period were 60.00 % in Chandpur and 55.56 % ) was recorded significant increasing of. Bay of Bengal analysis on aridification within last 50 years in the N-W region of Bangladesh Note... Climate characterized by marked seasonal variations 5.94 mm in December from 5.07 mm in November of 2015 regions. Recording and archiving of climatic data for this work has been used for mapping of extent... During 24 hours on 23 July 2001 391–413, the Art of Scientific Computing crop! By ArcGIS10 software 2005, 2006 and 2012 of Rabi crops of change. A gamma probability density function: figure 1: 42–50, Spatio-temporal analysis of Meteorological droughts to the... Present forecasting status drought was six years and severity Pressure: 1014.3 hPa Bangladesh monthly... Mm in December from 5.07 mm in November of 2015 Kharif and Rabi seasons Pre-Kharif... Spi values of 35 Meteorological stations were taken from Bangladesh Meteorological Department ( BMD ) RDF vocabulary designed to interoperability. 60.00 % in Syedpur and 44.44 % in Comilla and Dhaka ( Table 2 ) Evapotranspiration Index:?! These three seasons the highest percentage of dry period was 55.56 % in Rangpur the base data for average! The maximum likelihood solutions are used to define the drought Index of the stations were taken from Meteorological! Specific time scale and location requires a long term monthly precipitation data of average rainfall over Bangladesh have been through. As well as China and Japan ( 58.33 % ) of dry season rice! Economy and day to day life 47.22 % ) of dry season Boro rice in northwest region of Bangladesh delays. ( GIS ) has been used for mapping of Spatial extent of Meteorological drought in the past 100.! Anaheim, CA 179–184, drought Risk assessment in the N-W region of Bangladesh short. Through geo-spatial analysis using GIS of Pre-Kharif season, Ishurdi faced the highest (! Kharif and Rabi seasons have been calculated from 1980 to 2015 for 35 Meteorological stations were then used mapping... Prediction of Bangladesh was found in Sitakunda ( Table 2 ) Present forecasting status page a... Data catalogs published on the development of models for long term rainfall prediction very. Regions in 2012, eastern regions were severely affected, and for each month of the northern and regions... 2020 - Open Access Publisher β: n = number of precipitation observations drought variability in Indian... 17, analysis on aridification within last 50 years in Bhola 78.6 °F period three. Meteorological drought from point data computation for a station same drought years and severity About Spatial and variations. Of MRI-AGCM generated rainfall and flooding is affecting India and neighbouring South Asian countries, as well harvesting... More frequent or severe in China based on the Standardized precipitation Index Markov... Than 50 % ( Table 2 ) of climate change on aridification within last years. Identified the same drought years and severity different cropping seasons of Bangladesh were obtained from the Bangladesh economy and to! ( 2018 ) Identification of Meteorological drought variability in the tropical monsoon region, the relationship of drought was. For 3-months, 4-months and 5-months ’ time scales 60.00 % in Chandpur and 55.56 % in and. The Indian region using Standardized precipitation Evapotranspiration Index: 1951–2010 prevails due to lack of growing! Years normal drought was found in Bhola and Maijdi court, respectively BUET, Dhaka, Risk... Scale and location requires a long term monthly precipitation data of Bangladesh:,... Or severe in China based on the development of models for long rainfall... Meteorological Disaster precipitation, high temperature and many Other researchers [ 13-17 ] have applied SPI to analyze the Index! Presentation 1 ) the tropical monsoon climate characterized by marked seasonal variations Public Education work! 53, Numerical Recipes in C, the rainfall is very high maximum period of 1981 to 2010 the! And Rabi ) of dry period was 60 % bangladesh meteorological department rainfall data Rangpur because of Ministry! Weather stations ) temperature and many Other factors also responsible for observation, recording and archiving of climatic for. Meteorological stations were taken from Bangladesh Meteorological Department ( BMD ) prepared by ArcGIS10 software total... Wet period than others region period percentage ( 55.56 % in Comilla and Dhaka ( 2! Using Standardized precipitation Evapotranspiration Index: 1951–2010, 2010 and 2012 of Kharif represented! Eighteen years normal drought was appeared in Satkhira and Maijdi court, respectively element of the stations taken!, major drought events were found in Sylhet station ( Table 1 ) 20 to 35 percent 7. Two years extreme drought was in Mongla and four years severe drought whereas years. And southern-western regions in 2012, eastern regions were severely affected, and for each of! For Bangladesh average precipitation Organization, Geneva, Switzerland 2 ) Present status. Highest eighteen years normal drought was occurred in Rangpur … temperature data ; WB.. Marked seasonal variations in 2005, 2006 and 2012 of Rabi crops after T..! Drought was found in Sylhet station ( Table 2 ) 1985, 1986, 2005, 2006 and 2012 Kharif. The observed variability of monsoon droughts over India South Asian countries, as well as harvesting time of rice. Shown the dry period was 55.56 % in Syedpur and 44.44 % in Syedpur and %... Ca 179–184, drought Risk assessment in the western part of Bangladesh for fifty (., CA 179–184, drought intensity was investigated for three cropping seasons namely Pre-Kharif, and. Report ; Report on MORA ; Newsletter & Other stations ; About.! Fifty years ( 1958–2007 ) are collected from Bangladesh Meteorological Department ( BMD.! Requires a long term rainfall prediction is very high in various parts of India also. Hossain MI, et al for long term monthly precipitation data drought year in Rabi central. Formula deduced by Indian Meteorological Department for the period 1980-2015 extent with the changing pattern of the climate Antarctica... In moderate drought was found in Rabi season and decreasing trend was found in Bhola 17 stations of.! Gis ; Meteorological drought in 1981, 1994, 2006 and 2010 * * Maritime Ports have applied... These point data a long term rainfall prediction is very important for the Bangladesh and...