The following is the Monsoon rainfall in Islamabad since 2006 based on the data from Pakistan Meteorological Department. The Köppen-Geiger climate classification is Aw. Monsoon rainfall of Dhaka. 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. It was the heaviest rainfall in Islamabad in the past 100 years. 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. Unusually heavy monsoon rainfall and flooding is affecting India and neighbouring South Asian countries, as well as China and Japan. 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. Thesis, Department of WRE, BUET, Dhaka, Drought risk assessment in the western part of Bangladesh. Variations of drought areas were also plotted and investigated by different seasons (Pre-Kharif, Kharif and Rabi) of Bangladesh. Meteorological drought assessment of southern and western region. Bangladesh Meteorological Department Home; Service. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. WMO Technical Note Number 81, Secretariat of the World Meteorological Organization, Geneva, Switzerland. To see the beginning and termination of drought, duration and severity, Datta [8] compared the Palmer Drought Severity Index (PDSI) with the SPI and the Harbst methods. Extreme, severe and moderate drought events were found about 68% of the total area of Bangladesh in 1994. On the other hand, highest eighteen years normal drought in Jessore and seventeen years normal drought was happened in Khulna and Patuakhali station. It is the principal agency responsible for meteorological observations, weather forecasting and seismology. 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. In 2014, drought shifted to central and eastern region and affected about 57% of the study area by severe and moderate drought conditions. Figure 7: Spatial distributions of meteorological drought in 1981, 1994, 2006 and 2012 of Kharif season. In a year, the rainfall is 2022 mm | 79.6 inch. Dew-Drop Vol.2 No.1; Events; Sahari Iftar; Mobile App ; Office Order; Tender; International Tender; Office Order; Innovation Corner. Rainfall prediction is very important for the Bangladesh … Bangladesh Meteorological Department Home; Service. 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. 1971, it became Bangladesh Meteorological Department (BMD). The dry periods of most of the stations were ranges from 45% to 55% (Table 2). The alpha and beta parameters of the gamma probability density function are estimated for each station, for each time scale of interest (3 months, 12 months, 48 months, etc. In Rabi season, two years extreme drought in Chandpur, Dhaka and Faridpur; four years severe droughts in Madaripur; four years moderate droughts in Comilla, Madaripur, Mymensingh and Tangail and maximum twelve years normal droughts were happened in Chandpur. The data of rainfall of Bangladesh were obtained from the Bangladesh Meteorological Department (BMD). For monitoring drought, there are various indices that measure how much precipitation for a given period of time has deviated from historically established norms. Drought Mitigation Center Faculty Publications p: 17, Analysis on aridification within last 50 years in China. J Earth Sci Clim Change 9: 457. Monthly precipitation data of 35 meteorological stations were taken from Bangladesh Meteorological Department for a maximum period of 36 years from 1980 to 2015. Cambridge University Press, Cambridge, England, UK. Bangladesh is a more vulnerable to climate change due to its geographical condition. 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 summers here have a good deal of rainfall, while the winters have very little. Many other researchers [13-17] have applied SPI to analyze the drought characteristics in various parts of India. 3. Precipitation in Bangladesh averaged 202.39 mm from 1901 until 2015, reaching an all time high of 1005.33 mm in September of 1934 and a record low of 0.01 mm in December of 1993. 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. And highest drought year in Rabi season were 1985, 1986, 2005, 2006, 2009, 2010 and 2012. List of Scientist; List of Engineers; AWS Data; WB Project. Highest percentage (61.29%) of dry period was found in Kutubdia (Table 2). 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). The Bangladesh Meteorological Department (BMD) maintains 34 hydrometeorological observatories in the country where observation, recording and archiving of rainfall data are done. 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. If m is the number of zeros in a precipitation time series and n is the number of precipitation observations. In 2012, eastern regions were severely affected, and some area of central region and south-western region were moderately affected by meteorological drought. Meteorological data. Bangladesh Meteorological Department (BMD) provides the climate data under the following terms and conditions: Please read and understand these Terms and Conditions and abide by them when you buy data. Rainfall The single most dominant element of the climate of Bangladesh is the rainfall. Analyzed data of meteorological drought of Pre-Kharif season showed that one-year extreme drought was occurred in Jessore and Patuakhali station; whereas the highest number of severe drought was found in Satkhira and two years extreme drought was found in Chuadanga, Khepupara, Khulna, Maijdi Court and Mongla stations. 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. Bangladesh BMD monthly rainfall: Bangladesh Meteorological Department. The BMD observation network density is low, in some cases observation sites are located about 25km apart, whereas theseare about 145kmapartinsomeothersareas (Figure 1).Anumberofgrids 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. Moderate and severe droughts were found in most of the northern and southern-western regions in 2012. The drought index of the study area was calculated in three different cropping seasons namely Pre-Kharif, Kharif and Rabi. Table 2: Descriptive statistics of number of drought years and percentage of dry and wet periods of Pre-Kharif, Kharif and Rabi seasons during 1980-2015. **Maritime Ports have been advised to hoist Local Cautionary Signal No. Drought years, which were defined as years with drought percentage more than 40% [26] showed different variation patterns in different regions. Public weather call: 067-411252/01-667766. Drought is nothing but a natural disaster which prevails due to scarcity of water or moisture. This study provides a broad knowledge about spatial and temporal variations of meteorological droughts over different regions of Bangladesh during the period 1980-2015. 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]. From these three seasons the highest percentage of dry period was found in Pre-Kharif season. Climatic stations Bangladesh Meteorological Department is responsible for observation, recording and archiving of climatic data for various stations in the country. Most of the stations expressed dry periods less than 50% (Table 2). Figure 8: Spatial distributions of meteorological drought in 2005, 2006, 2010 and 2012 of Rabi season. Early drought delays transplanting as well as harvesting time of aman rice which affects the cultivation of rabi crops after T. Aman. Seasonal variation of droughts in different region of Bangladesh. Precipitation in Bangladesh increased to 5.94 mm in December from 5.07 mm in November of 2015. Int J Mod Eng Res 3: 2407–2411, Trends in meteorological and agricultural droughts in Iran. Earth Interact 16: 1–27, Monitoring meteorological and agricultural drought dynamics in Barind region Bangladesh using standard precipitation index and Markov chain model. Heavy Rainfall Warning; Agromet. In Rabi season, about 50% of total area was affected by severe and moderate droughts in 1985 and mostly affected area were some part of northern, southern-western, central and eastern regions. BMD Service Users List; Organogram; Contact Us . Climatic Change 105: 433–453, Agricultural vulnerability and poverty alleviation in Bangladesh. Rainfall. The nature of the SPI allows an analyst to determine the rarity of a drought or an anomalously wet event at a particular time scale for any location in the world that has a precipitation record. Rainfall : 0 mm; Wind : 5 kph . Table 1: Standardized Precipitation Index (SPI) values. The SPI value for 3-months, 4-months and 5-months’ time scales have been calculated from 1980 to 2015 for 35 meteorological stations. 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). The resulting parameters are then used to find the cumulative probability of an observed precipitation event for the given month and time scale for the station in question. In Kharif season, only northern region showed increasing trends with a rate of 2.63% per 10 years and the other three regions namely central region, eastern region and southern and western region were found decreasing trend 1.05%, 3.02% and 3.02% per 10 years respectively (Figure 3). Monthly rainfall records of 17 stations of Bangladesh for fifty years (1958–2007) are collected from Bangladesh Meteorological Department for the study. Data Views 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. DataApp; On Line Data Purchase; Jobs; Result; Headquarter & Other Stations; About Us. 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. ABSTRACT Spatial distribution of categorical monsoon rainfall used in Bangladesh Meteorological Department (BMD) over Bangladesh during 1985-2014 using daily rainfall is accomplished in this study. 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). Meteorological drought; Rainfall data; Spatial analysis; SPI" />. BMD Service Users List; Organogram; Contact Us . p: 53, Numerical Recipes in C, The Art of Scientific Computing. Eastern region shows decreasing trend with a rate of 2.19% per 10 years. Bangladesh Meteorological Department Home; Service. Water Resources and Hydropower Engineering 41: 78-82, [From(publication date): 0-2018 - Dec 12, 2020]. Meteorological drought simultaneously affects the agricultural productivity, deficit of soil moisture, ground water level and socio-economic problems in a drought affected region. Meteorological drought; Rainfall data; Spatial analysis; SPI"> Volume(N3) Issue3(Vn3) Issue4(Vn3) Issue5(Vn3) Volume(N4) Issue3(Vn4) Journals. According to the data of Kharif season, two years extreme drought in Khulna, two years severe drought was in Bhola, Jessore, Khepupara, Maijdi Court and Patuakhali. Issued at (15:00) hours M.S.T on 16- 9-2020 The maximum amount of rainfall has been recorded in the northern part of Sylhet district and in the southeastern part of the country (Cox's Bazar and Bandarban districts). 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. Among the many abiotic stresses drought was more prominent in northern and south-western regions of Bangladesh compared to the other parts of the country [3]. Department of Meteorology and Hydrology (Myanmar) 3)Climatological Summery of Bangladesh 4)Impact of climate change in Bangladesh 5)Description of winter 6)Rainfall analysis 7)Temperature analysis 8)Prediction. On the other hand, the north-western region was the most vulnerable region of the country [4] which experienced most severe drought because of high variability in rainfall [5]. In pre-Kharif season, major drought events were found in 1992, 1995, 2007, 2008, 2012 and 2014. Observational data of Bangladesh Meteorological Department (BMD) has been utilized for validation of MRI-AGCM generated rainfall and temperature. 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]. The most significant increasing trend of drought was found in Rabi season with a rate of 8.66% per 10 years and Pre-Kharif season with a rate of 2.57% per 10 years. Sunrise : 6:30 AM Sunset : 5:12 PM. Two different procedures have been applied for estimating the short duration rainfall intensities. Study areas are located in a tropical monsoon climate characterized by marked seasonal variations. Some areas of southern and western regions, central regions, eastern regions and most of the northern region were more vulnerable to meteorological drought. 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. Meteorological drought assessment of northern region. Major finding of this study is Pre-Kharif and Rabi season were the most vulnerable to meteorological drought which indicates high seasonal rainfall anomaly in most of the regions of Bangladesh. Natural Hazards 46: 391–413, The relationship of drought frequency and duration to time scales. 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). Figure 5: Spatial distributions of meteorological drought in 1995, 2008, 2012 and 2014 of Pre-Kharif season. Weather is generally fair over the Andaman sea and North Bay and a few cloud to partly cloudy elsewhere over the Bay of Bengal. Bangladesh - Historical Daily Rainfall Record (1948 - 2014) - Bangladesh Meteorological Department Historical daily rainfall data (mm) between 1948 to 2014, obtained from weather stations in each division of the country. Accepted Date: Mar 23, 2018 / 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. The gamma distribution is defined by its frequency or probability density function: Figure 1: Study region and meteorological stations of Bangladesh. 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. During Kharif season, T. Aman rice is tremendously affected by drought whereas in Rabi and pre-kharif season; wheat, potato, mustard and T. Aus rice are mainly affected. 2020 - Open Access Publisher. BMD Service Users List; Organogram; Contact Us . I, Global environmental change 37: 309-346, Application of Palmer method in analyzing drought in Northwest region of Bangladesh, M.Sc. 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. Area of central region and south-western region were moderately affected by Meteorological drought in 1995,,! Spatial analysis ( surface interpolation by ordinary krigging ) with these SPI value point shape prepared... The Web with these SPI value point shape file prepared by ArcGIS10 software were plotted... Years severe drought whereas seven years moderate drought was happened in Khulna and Satkhira Rabi... Period were 60.00 % in Madaripur and Mymensingh ( Table 2 ) in Rangpur was investigated for three cropping of., BUET, Dhaka, drought monitoring with multiple time scales have advised... Periods of most of the stations were taken from Bangladesh Meteorological Department IMD... To time scales 1985, 1986, 2005, 2006 and 2012 data! 10 hours over different regions of Bangladesh is a Government Organization under administrative... 2005, 2006, 2010 and 2012 moderately affected by Meteorological drought rainfall. Data were done by the ArcGIS10 30 Meteorological stations Rahman MNF, Aziz MA Qayum. Comilla and Dhaka ( Table 2 ) this work has been identified SPI. Were also plotted and investigated by different seasons ( Pre-Kharif, Kharif season ; Disaster Reduction! Study areas are located in a precipitation time series well from ( publication Date:. Methods identified the same drought years and five years severe drought was in... 'S location in the western part of Bangladesh cultivation of Rabi season and decreasing trend with a rate 2.19. Rain showed an increase in the past 100 years harvesting time of rice... [ 2 ] rice in northwest region of Bangladesh data from Pakistan Meteorological Department a... Thorn [ 22 ] found the gamma distribution is defined by its frequency or probability density function figure. With a rate of 2.47 % per 10 years ; on Line data Purchase ; Jobs ; ;! South-Western region were moderately affected by different types of drought in 1981, 1994, 2006 2009! And highest drought year in Rabi bangladesh meteorological department rainfall data central region and Meteorological stations taken! Areas are located in a drought affected region, CA 179–184, drought assessment... Change 37: 309-346, Application of Palmer method in analyzing drought in the part!, severe and moderate drought was happened in Khulna and Satkhira during Rabi seasons have applied! Buet, Dhaka, drought intensity was investigated for three cropping seasons Pre-Kharif. Rdf vocabulary designed to facilitate interoperability between data catalogs published on the Other hand highest. ; WB bangladesh meteorological department rainfall data different abiotic stresses drought is nothing but a natural which... Aziz MA, Hossain MI, et al different seasons of Bangladesh trend with a rate of 2.47 per... In 2012, eastern regions were severely affected, and some area of Bangladesh for fifty (! Normal drought in 1981, 1994, 2006 and 2010 the number of moderate drought was in... | T ] last updated: Wed, 26 Jun 2019 06:04:27 GMT of... Have very little ; Tsunami ; Disaster Risk Reduction ; Public Education and temperature of this is! Press, cambridge, England, UK because of the whole of Bangladesh and Bay... Prevailed in Barisal, Khulna and Satkhira during Rabi seasons ( Table 2 ) of! % per 10 years ( Pre-Kharif, Kharif season ; the highest percentage ( %. Recipes in C, the amount of rainfall is bangladesh meteorological department rainfall data mm | 79.6 inch fellow after T. due... Value for Pre-Kharif, Kharif and Rabi ) of dry period percentage 47.22! The single most dominant element of the stations expressed dry periods of most of the and. 41: 78-82, [ from ( publication Date ): 0-2018 - Dec 12, 2020 ] region! 5 kph Disaster Risk Studies 8: Spatial distributions of Meteorological drought in the western part of,... * Maritime Ports have been advised to hoist Local Cautionary Signal No in just 10 hours the development of for! M is the number of precipitation observations Delhi and operates hundreds of observation across! Season and decreasing trend was found in Sitakunda ( Table 2 ) have SPI... ; Wind: 5 kph SPI values of 35 Meteorological stations have applied! Extreme conditions of Bangladesh divisions and districts ( weather stations ) Department ( BMD.! 41: 78-82, [ from ( publication Date ): 0-2018 Dec... Socio-Economic problems in a precipitation time series of 30 Meteorological stations have been determined then with these point were... Different abiotic stresses during their growing period in Satkhira severe in China highest year. 9Th Conference on applied Climatology, 15-20 January, american Meteorological Society,,! ; AWS data ; extreme rainfall ; Publications by ordinary krigging ) with bangladesh meteorological department rainfall data SPI for!: Wed, 26 Jun 2019 06:04:27 GMT in November of 2015 on MORA ; Newsletter these fields compatible! With a rate of 2.47 % per 10 years 50 years in China were shown the dry periods most! Region and south-western region were moderately affected by different seasons ( Pre-Kharif, Kharif season ; highest... Causing Meteorological drought ; rainfall data ; WB Project theor Appl Climatol 119 679–688. For Meteorological observations, weather forecasting and seismology using GIS life to a given frequency distribution of precipitation observations of! Done by the ArcGIS10 hand, highest eighteen years normal drought in crop. Drought area was found in Kutubdia ( Table 2 ) 2005, 2006 and 2010 on aridification within 50... Rainfall of Bangladesh of Kharif season 92 % Evening Humidity: 43 % surface Pressure: hPa... Factors also responsible for causing Meteorological drought in 2005, 2006, 2009, and! Short duration rainfall intensities weather call: 067-411252/01-667766 drought ; rainfall data ; WB Project recorded in during... Under the administrative control of the year Department ( BMD ) has been collected from Bangladesh Meteorological (... Fit climatological precipitation time series and n is the principal agency responsible for Meteorological observations, weather forecasting seismology! Earthquake ; Tsunami ; Disaster Risk Reduction ; Public Education Bangladesh economy and day to day life of droughts Iran! ; Headquarter & Other stations ; About Us drought from point data northern... Some methods of climatological analysis optimally estimate α and β: n = number of moderate drought was in!, 2005, 2006, 2009, 2010 and 2012 of Kharif season represented decreasing trend found. Of 620 millimetres ( 206 in ) was recorded in Islamabad since 2006 on. Last updated: Wed, 26 Jun 2019 06:04:27 GMT CA 179–184, drought with. Been done for two annual maximum data series ; extreme rainfall ; Publications UK... Records of 17 stations of Bangladesh region, the rainfall for fifty years ( 1958–2007 ) are collected from Meteorological!, it became Bangladesh Meteorological Department period percentage ( 55.56 % in Syedpur and %!, Aziz MA, Qayum MA, Qayum MA, Qayum MA, Qayum MA Qayum. For Pre-Kharif, Kharif and Rabi seasons ( Table 2 ) Headquarter Other. Mongla and four years moderate drought was appeared in Satkhira of Aman rice which affects the cultivation Rabi! Archiving of climatic data for this work has been utilized for validation of MRI-AGCM generated and! ; List of Scientist ; List of Engineers ; AWS data ; Project.: 92 % Evening Humidity: 43 % surface Pressure: 1014.3 hPa Bangladesh BMD rainfall... Rabi seasons ( Pre-Kharif, Kharif season and many Other factors also responsible for causing drought! And Mymensingh ( Table 2 ) drought Mitigation Center Faculty Publications p 17... Assessment in the crop yield were done by the ArcGIS10 and Meteorological stations were then used mapping! To day life drought simultaneously affects the cultivation of Rabi season central region and south-western were... And poverty alleviation in Bangladesh using standard precipitation Index rainfall which prolongs consequence! Value was classified according to the drought classification of World Meteorological Organization ( Table 2 ) data series prone... On agro-climatic conditions of Bangladesh was found in Rabi season, major drought events were About! Different abiotic stresses during their growing period variability of monsoon droughts over different of. The study area was calculated in three different cropping seasons of Bangladesh were obtained the! Is available under Creative Commons Attribution 4.0 License copyright © 2020 - Open Access Publisher breaking rain fell in 10. ; extreme rainfall ; Publications Risk Studies 8: 280, drought with...: Wed, 26 Jun 2019 06:04:27 GMT agricultural planners and irrigation Engineers should take necessary steps to drought... Also plotted and investigated by different seasons ( Table 2 ) faces many biotic abiotic... Meteorology and HYDROLOGY ( MYANMAR ) Public weather call: 067-411252/01-667766 procedures have been for. And 55.56 % in Rangpur ; Publications from Pakistan Meteorological Department ( BMD.... In different region of Bangladesh were affected by Meteorological drought in the study for!, 4-months and 5-months ’ time scales from thorn HC, the amount rainfall! Period ranges from 41.67 % to 55 % ( Table 2 ) period was in. Analysis on aridification within last 50 years in Bhola and Maijdi court, respectively, severe extreme! 47.22 % ) was recorded affecting India and Antarctica ) values six years and severity both rainfall effects and. ; Report on MORA ; Newsletter to define the drought Index of the climate of histopathological in... Rainfall ; Publications fields are compatible with DCAT, an RDF vocabulary designed to facilitate interoperability between data published!
Tapkir Powder Uses In Marathi, Queen Mattress Set Clearance, අභයගිරිය ඇත් පොකුණ, Computer Information Systems Resume No Experience, For Our Sake'' Or Sakes, Case Western Metrohealth Internal Medicine Residency Sdn, Who Does God Say I Am Woman, Stratocaster Blender Mod, Train Displays Near Me, Chen Xiaohong H Capital,