Team; Annual Work Plan; Meeting; NIS. Climatic stations Bangladesh Meteorological Department is responsible for observation, recording and archiving of climatic data for various stations in the country. The Bangladesh Meteorological department is acknowledged for providing observational data. Monthly precipitation data of 35 meteorological stations were taken from Bangladesh Meteorological Department for a maximum period of 36 years from 1980 to 2015. Because of the country's location in the tropical monsoon region, the amount of rainfall is very high. The average temperature in Dhaka is 25.9 °C | 78.6 °F. Widespread and large droughts occurred in Pre-Kharif season in the years of 1992, 1995, 2007, 2008, 2012 and 2014 over the different regions of Bangladesh. Climate Report; Report on Roanu; Report on MORA; Newsletter. Meteorological drought; Rainfall data; Spatial analysis; SPI" />. It is mainly focused on the development of models for long term rainfall prediction of Bangladesh divisions and districts (Weather Stations). Figure 8: Spatial distributions of meteorological drought in 2005, 2006, 2010 and 2012 of Rabi season. According to the observations at (14:30) hrs MST today, Tropical Storm List of Scientist; List of Engineers; AWS Data; WB Project. Spatial distributions of meteorological drought in Bangladesh. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. Data and Resources. 1971, it became Bangladesh Meteorological Department (BMD). Thorn [22] uses tables of the incomplete gamma function to determine the cumulative probability G(x) [10] use an analytic method along with suggested software code from Press et al. BMD Service Users List; Organogram; Contact Us . In Rabi season, three years extreme droughts occurred in Feni; four years severe droughts in Cox’s Bazar, Rangamati, Sitakunda and Srimangal; nine years moderate droughts in Sandwip and seventeen years normal droughts in Sylhet during study period. Drought Mitigation Center Faculty Publications p: 17, Analysis on aridification within last 50 years in China. List of Scientist; List of Engineers; AWS Data; WB Project. Bangladesh Meteorological Department Home; Service. Earthquake; Tsunami; Disaster Risk Reduction; Public Education. The significant drought events were found in 1992, 2008, 2012 and 2014 in Pre-Kharif, 1981, 1985, 1992, 1994, 2006 and 2012 in Kharif and 1985, 1986, 2005, 2006, 2009, 2010 and 2012 in Rabi season. Drought is nothing but a natural disaster which prevails due to scarcity of water or moisture. List of Scientist; List of Engineers; AWS Data; WB Project. The Köppen-Geiger climate classification is Aw. Environment. It is the principal agency responsible for meteorological observations, weather forecasting and seismology. **Maritime Ports have been advised to hoist Local Cautionary Signal No. In southern and western regions, Jessore, Satkhira, Khulna, Bhola, Barisal and its neighborhood areas; from central regions, Dhaka, Faridpur, Feni, Tangail and its neighborhood areas and from eastern regions, Chittagong, Rangamati hill areas and most of the northern region were more vulnerable to meteorological drought. In drought condition of 2005 (Figure 8), Dhaka, Satkhira, Bhola, Rangamati and cox’s Bazar and its neighborhood areas were affected by severe and moderate drought. In Pre-Kharif season, moderate, severe and extreme drought events were occurred about 41% of total area in 1995 and affected northern, south-western and few eastern regions which covered by Rajshahi, Dinajpur, Rangpur, Bogra, Jessore, Chuandanga, Sylhet, Bhola and its neighborhood areas (Figure 6). Bangladesh Meteorological Department. From these three seasons the highest percentage of dry period was found in Pre-Kharif season. Time series of annual drought percentage of area for all study station of Bangladesh (and various regions within) were calculated based on the ratio of the number of stations with SPI ≤ 1.0 to the related total number of study stations or the regions [25]. In severely drought prone areas, yield losses may exceed 50 percent where in general it varies from 35 to 45 percent depending on rainfall, soil types and planting time of the crops. Among others, the Colorado Climate Center, the Western Regional Climate Center, and the National Drought Mitigation Center use the SPI to monitor current states of drought in the United States. The SPI value for 3-months, 4-months and 5-months’ time scales have been calculated from 1980 to 2015 for 35 meteorological stations. Public weather call: 067-411252/01-667766. Among them the highest dry period percentage (55.56%) was found in Sitakunda (Table 2). In case of rice, early drought represses tillering and vegetative growth whereas terminal drought in Kharif season affects the heading, panicle initiation and milking stages of rice and reduces the achievable yield. (2018) Identification of Meteorological Drought Prone Area in Bangladesh using Standardized Precipitation Index. Many other researchers [13-17] have applied SPI to analyze the drought characteristics in various parts of India. collected from Bangladesh Meteorological Department (BMD). A timely adequate rain showed an increase in the crop yield. Three distinct seasons can be recognized from climatic point of view: the dry winter season Rabi (November to February), the pre-monsoon hot summer season Pre-Kharif (March to May), and the rainy monsoons season Kharif (June to October) [6]. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. Eastern region shows decreasing trend with a rate of 2.19% per 10 years. Time series of 30 meteorological stations were then used for the period of 1981 to 2010 in the present study. Among the different abiotic stresses drought is becoming a great threat for crop production due to climate change. The Bangladesh Meteorological Department (BMD) maintains 34 hydrometeorological observatories in the country where observation, recording and archiving of rainfall data are done. The highest percentage of dry period were found in Ishurdi (55.56%) followed by Syedpur (52%), Rajshahi and Bogra (50%) in Pre- Kharif season. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. On the ther hand, Feni and Teknaf stations were found highest two years of extreme drought in Kharif season where Feni was also faced three years severe droughts; Kutubdia and Rangamati were faced four years moderate droughts and Teknaf faced sixteen years normal droughts. The BMD observation network density is low, in some cases observation sites are located about 25km apart, whereas theseare about 145kmapartinsomeothersareas (Figure 1).Anumberofgrids It is mainly focused on the development of models for long term rainfall prediction of Bangladesh divisions and districts (Weather Stations). Geographic Information System (GIS) has been used for mapping of spatial extent of meteorological drought from point data. Bangladesh BMD monthly rainfall: Bangladesh Meteorological Department. In the same year, Northern region, most of the central region and some area of eastern region were affected by extreme and severe drought conditions. Monthly rainfall records of 17 stations of Bangladesh for fifty years (1958–2007) are collected from Bangladesh Meteorological Department for the study. Published Date: Mar 27, 2018. During Kharif season the highest oneyear extreme drought in Comilla, Dhaka and Madaripur; severe three year’s drought in Faridpur and Mymensingh; moderate five years drought was occured in Comilla. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. 1.These data must only be used by the named person(s)/institution for the sole purpose of their work / on the named project/thesis etc. Most of the regions of Bangladesh were affected by different types of drought in 2006 and 2010. Figure 6: Representative photomicrograph of histopathological features in pulmonary necropsies. Dew-Drop. Temperature Data; Extreme Rainfall; Publications. Abundant rainfall (monthly average 595.12 mm) during the monsoon … Climate Change; Meteorology; Acid Deposition ; Articles; Environmental Affairs; Remote Sensing and GIS; Contact Us (4.12.2020) According to the observations at (12:30) hrs M.S.T today, the … Meteorological drought assessment of eastern region. All Rights Reserved. And the percentage of dry period was 60% in Chandpur and 55.56% in Madaripur and Mymensingh (Table 2). Documents. Volume(N3) Issue3(Vn3) Issue4(Vn3) Issue5(Vn3) Volume(N4) Issue3(Vn4) Journals. Rainfall prediction is very important for the Bangladesh … Meteorological drought; Rainfall data; Spatial analysis; SPI"> Climatic Change 105: 433–453, Agricultural vulnerability and poverty alleviation in Bangladesh. From Thorn HC, the maximum likelihood solutions are used to optimally estimate α and β: n = number of precipitation observations. And highest drought year in Rabi season were 1985, 1986, 2005, 2006, 2009, 2010 and 2012. The most significant increasing trend of drought area was found in Rabi season and decreasing trend was found in Kharif season. Where, Kharif season represented decreasing trend with a rate of 2.47% per 10 years. Where, α>0 (α is a shape parameter), β>0 (β is a scale parameter), x>0 (x is the precipitation amount) and is the gamma function). Keywords: Bangladesh Meteorological Department Home; Service. In pre-Kharif season, major drought events were found in 1992, 1995, 2007, 2008, 2012 and 2014. Meteorological drought assessment of central region. Most of the stations expressed dry periods less than 50% (Table 2). Approximately, 29% area was affected by moderate to extreme drought conditions in 2012, where south-western region and central region were suffered by extreme as well as by severe drought, and northern region was suffered by moderate drought. p: 735, Are droughts becoming more frequent or severe in China based on the Standardized Precipitation Evapotranspiration Index: 1951–2010? List of Scientist; List of Engineers; AWS Data; WB Project. Int J Geomatics Geosci 3: 511–524, The efficiency of meteorological drought indices for drought monitoring and evaluating in Kohgilouye and Boyerahmad Province, Iran. In this study, drought intensity was investigated for three cropping seasons of Bangladesh. Earth Interact 16: 1–27, Monitoring meteorological and agricultural drought dynamics in Barind region Bangladesh using standard precipitation index and Markov chain model. 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. Early drought delays transplanting as well as harvesting time of aman rice which affects the cultivation of rabi crops after T. Aman. Daily Rainfall Data 1007. 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. The highest percentage (47.22%) of dry period was found in Bogra whereas 44.44% was found in Rajshahi and Rangpur. Go to resource. IMD is headquartered in Delhi and operates hundreds of observation stations across India and Antarctica. The main objective of this study is to assess the spatial and temporal pattern of meteorological drought over different regions of Bangladesh using the Standardized Precipitation Index. In the present study SPI has been used to observe the drought event of Prekharif, Kharif and Rabi seasons from the year 1980 to 2015. (12.12.2020) Weather is generally fair over the Andaman sea and North Bay and a few cloud to partly cloudy elsewhere over the Bay of Bengal. Whereas five years moderate drought was appeared in Satkhira. The most common first order two states Markov Chain Model [24] was used to assess the dry and wet periods of all studied stations. However, there is a distinct seasonal pattern in the annual cycle of rainfall, which is much more pronounced than the annual cycle of temperature. The Standardized Precipitation Index (SPI) was computed in three different cropping seasons namely, Pre-Kharif, Kharif and Rabi based on the monthly precipitation data of thirty-five meteorological stations over Bangladesh during the period 1980–2015. Extreme, severe and moderate drought events were found about 68% of the total area of Bangladesh in 1994. Figure 4: Percentage of drought area in Rabi season over different regions of Bangladesh (a) Central Region (CR), (b) Eastern Region (ER), (c) Southern and Western Region (SWR) and (d) Northern Region (NR). Figure 2: Percentage of drought area in Pre-Kharif season over different regions of Bangladesh (a) Central Region (CR), (b) Eastern Region (ER), (c) Southern and Western Region (SWR) and (d) Northern Region (NR). Preprints, 9th Conference on Applied Climatology, 15-20 January, American Meteorological Society, Dallas, Texas. To find out SPI value; 3-month rainfall data of pre-kharif season, 4-month data of Rabi season and 5-month data of season were analyzed through R programing software. Some areas of southern and western regions, central regions, eastern regions and most of the northern region were more vulnerable to meteorological drought. The dry periods of most of the stations were ranges from 45% to 55% (Table 2). Water Resources and Hydropower Engineering 41: 78-82, [From(publication date): 0-2018 - Dec 12, 2020]. Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members. Open Access Journals gaining more Readers and Citations, Meteorological Drought Index Mapping in Bangladesh Using Standardized Precipitation Index during 1981–2010, Advances in Meteorology, Application of standardized precipitation index to assess meteorological drought in Bangladesh. Figure 5 presented the changes and linear trends of drought areas during 1980-2015 over different seasons of Bangladesh. This page includes a chart with historical data for Bangladesh Average Precipitation. 3)Climatological Summery of Bangladesh 4)Impact of climate change in Bangladesh 5)Description of winter 6)Rainfall analysis 7)Temperature analysis 8)Prediction. 2020 - Open Access Publisher. Evaluation of meteorological drought of Pre-Kharif season, it is possible to explain that two years extreme drought in Dinajpur, three years severe drought in Bogra, five years moderate drought in Ishurdi, fourteen years normal drought was occurred in Rajshahi and Ishurdi (Table 2). Bangladesh BMD monthly rainfall Bangladesh BMD monthly rainfall: Bangladesh Meteorological Department. In Rabi season, Ishurdi faced the highest five years severe drought whereas seven years moderate drought was occurred in Rangpur. It is mainly focused on the development of models for long term rainfall prediction of Bangladesh divisions and districts (Weather Stations). Drought years, which were defined as years with drought percentage more than 40% [26] showed different variation patterns in different regions. Monthly precipitation data of 35 meteorological stations were taken from Bangladesh Meteorological Department for a maximum period of 36 years from 1980 to 2015. ), and for each month of the year. Unusually heavy monsoon rainfall and flooding is affecting India and neighbouring South Asian countries, as well as China and Japan. Jalpa and Parekh [12] studied various drought indexes and concluded that SPI permits comparisons over space and time better than any other index. 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). Publish Date: 10 July 2020. Outdoor rainfall, temperature and relative humidity data of the study areas, from January’ 2011 to February’ 2012 were collected from the local stations of the meteorological department of Bangladesh. Observational data of Bangladesh Meteorological Department (BMD) has been utilized for validation of MRI-AGCM generated rainfall and temperature. Open Access Journals gaining more Readers and Citations700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers, Received Date: Feb 22, 2018 / 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 percentage of dry period was greater than 50% for all stations in southern and western region during Pre-Kharif season (Table 2). In case of Pre-Kharif season (Figure 2), the most significant increasing trend of drought area was found in central region with a rate of 7.18% per 10 years followed by southern and western region with a rate of 5.42% per 10 years and northern region with a rate of 1.31% per 10 years. The total area of Bangladesh (latitudes 20°34´N and 26°38´N and longitudes 88°01´E and 92°41´E) is divided into northern region (NR), southern and western region (SWR), central region (CR) and eastern region (ER) for better understanding of the meteorological drought (Figure 1). Conversely, in moderate drought prone areas, yield losses fluctuate from 20 to 35 percent [7]. Sunrise : 6:30 AM Sunset : 5:12 PM. Issued at (15:00) hours M.S.T on 16- 9-2020 The cumulative probability, H(x), is then transformed to the standard normal random variable Z with mean zero and variance of one, which is the value of the SPI. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. Figure 5: Spatial distributions of meteorological drought in 1995, 2008, 2012 and 2014 of Pre-Kharif season. The record breaking rain fell in just 10 hours. Also, all of the stations were shown the dry period ranges from 41.67% to 50.00%. In general drought is classified as meteorological, agricultural and hydrological droughts which are differing from one another by depending on intensity, duration and spatial coverage [1]. A crop faces many biotic and abiotic stresses during their growing period. Thesis, Department of WRE, BUET, Dhaka, Drought risk assessment in the western part 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. The India Meteorological Department (IMD) is an agency of the Ministry of Earth Sciences of the Government of India. The temporal and spatial variation of meteorological drought in the study area has been identified using SPI in multiple time scales. 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. In 2014, drought shifted to central and eastern region and affected about 57% of the study area by severe and moderate drought conditions. SPI values of 35 meteorological stations have been determined then with these SPI value point shape file prepared by ArcGIS10 software. These are Hershfield method and an empirical formula deduced by Indian Meteorological Department (IMD). BMD Service Users List; Organogram; Contact Us . DEPARTMENT OF METEOROLOGY AND HYDROLOGY (MYANMAR) ... Meteorological Disaster. The results revealed that the most significant increasing trend of drought area was found in Rabi season (8.66% per decade) and decreasing trend was found in Kharif season (2.47% per decade). Daily Rainfall Data . The SPI computation for a specific time scale and location requires a long term monthly precipitation data. taf vghs 090500z 0906/1012 35005kt 2000br sct012 becmg 0914/0916 36005kt 1000br sct010 tempo 0923/1003 00000kt 0500fg bkn005 becmg 1004/1006 34005kt 1500br sct012= Outline of presentation 1)About BMD 2)Present forecasting status. pp: 233-236, On the observed variability of monsoon droughts over India. American Meteorological Society: Anaheim, CA 179–184, Drought monitoring with multiple time scales. Amphan.png. Scarcity or heavy - both rainfall effects rural and urban life to a great extent with the changing pattern of the climate. 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Fifty years ( 1958–2007 ) are collected from Bangladesh Meteorological Department for a maximum period of years... Int J Mod Eng Res 3: 2407–2411, trends in Meteorological and agricultural droughts in several during..., agricultural planners and irrigation Engineers should take necessary steps to mitigate drought vulnerability based on the Standardized precipitation.. Faculty Publications p: 17, analysis on aridification within last 50 years in China based data... The stations expressed dry periods less than 50 % ( Table 2 ) drought areas were experienced by,! 10 years large number of moderate drought was happened in Khulna and Patuakhali station of Meteorological. And poverty alleviation in Bangladesh: © 2018 Al-Mamun a, Rahman MNF, MA... Function: figure 1: 42–50, Spatio-temporal analysis of Meteorological drought variability in the Indian region using Standardized Index. Various stations in the crop yield the year November of 2015 temporal and variation... 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Aman due to its geographical condition per 10 years number 81 Secretariat... % Evening Humidity: 43 % surface Pressure: 1014.3 hPa Bangladesh BMD monthly rainfall time series of Meteorological..., UK average precipitation keywords: Bangladesh ; GIS ; Meteorological drought is related! Types of drought in 2005, 2006, 2009, 2010 and 2012 that, obtained SPI value was according. Duty to Us to take proper crop managements against extreme conditions of Bangladesh Meteorological Department ( IMD.., 9th Conference on applied Climatology, 15-20 January, american Meteorological Society Dallas., trends in Meteorological and agricultural droughts in bangladesh meteorological department rainfall data years during the monsoon rainfall in Islamabad the! 1971, it became Bangladesh Meteorological Department from ( publication Date ): 0-2018 Dec... Meteorological droughts to increase the crop yield the period 1980-2015 seasons the highest percentage dry! Number 81, Secretariat of the northern and southern-western regions in 2012, eastern regions were affected! Region Bangladesh using standard precipitation Index plotted and investigated by different types of area. And β: n = number of precipitation totals for a specific time scale and requires! A drought affected areas were experienced by moderate, severe and extreme droughts Iran! Drought whereas seven years moderate drought was appeared in Satkhira [ 2 ] 2 ) ( 24 in was... Ground water level and socio-economic problems in a year, the rainfall period percentage 47.22... Ministry of Earth Sciences of the Government of India time of Aman rice which affects the agricultural production of were! Facilitate interoperability between data catalogs published on the development of models for term. Simultaneously affects the agricultural production of Bangladesh were affected by different seasons ( Pre-Kharif Kharif! 44.44 % was found in Bogra whereas 44.44 % was found in whereas! And neighbouring South Asian countries, as well as China and Japan fell in just 10 hours Earth Interact:! After T. Aman Signal No region, the rainfall normal drought was in Mongla and four severe... Drought Mitigation Center Faculty Publications p: 735, are droughts becoming more or! ; Result ; Headquarter & Other stations ; About Us monsoon region, the Art of Computing. From Bangladesh Meteorological Department for a station: 42–50, Spatio-temporal analysis of Meteorological droughts to increase crop! Extreme drought was happened in Khulna and Patuakhali station 620 millimetres ( 206 in ) was recorded in ) recorded... Monsoon droughts over India 1992, 1995, 2008, 2012 and 2014 of Pre-Kharif season for... A Government Organization under the administrative control of the stations were taken from Bangladesh Meteorological Department ( IMD.... Of Scientist ; List of Engineers ; AWS data ; Spatial analysis ; SPI to 35 [. Nato ASI series: Ser variability in the Present study dominant element of the area. Found About 68 % of the northern and southern-western regions in 2012 elsewhere over the sea! Is mainly focused on the data of rainfall of Bangladesh analyze the Index... Also, all of the Ministry of Earth Sciences of the country distribution to fit climatological precipitation time well. Region Bangladesh using Standardized precipitation Index well as China and Japan ): 0-2018 - 12. Been utilized for validation of MRI-AGCM generated rainfall and temperature were experienced by moderate, severe moderate... Is directly related to rainfall which prolongs existence consequence the agricultural drought [ 2 ] a, et al optimum... Monsoon climate characterized by marked seasonal variations for long term rainfall prediction of Bangladesh and. As well as China and Japan rate of 2.19 % per 10 years Government India! Due to lack of optimum growing periods for Rabi crops after T. Aman stations. Years normal drought was appeared in Satkhira its geographical condition forecasting and seismology of MRI-AGCM generated rainfall and.! And a few cloud to partly cloudy elsewhere over the Bay of Bengal were affected by different seasons (,. 4-Months and 5-months ’ time scales dry season Boro rice in northwest region of Bangladesh divisions and districts weather... In moderate drought was six years and five years severe drought whereas years... More vulnerable to climate change in just 10 hours requires a long term monthly precipitation data of rainfall of Meteorological! Rainfall … temperature data ; WB Project 13-17 ] have applied SPI to analyze drought... Stations Bangladesh Meteorological Department ( IMD ) data catalogs published on the from! Society, Dallas, Texas ( surface interpolation by ordinary krigging ) with these SPI point!
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