Precipitation in Bangladesh increased to 5.94 mm in December from 5.07 mm in November of 2015. Data were collected from the BMD from 1980 to 2011 and used as the input data for PCI analysis. Curated pages dedicated to humanitarian themes and specific humanitarian crises. RAINFALL SITUATION UP TO 0900 HOURS ON 06-06-2013 (in millimeter) Location. Meanwhile, SO, ON, ND, and DJ had moderate-to-irregular distributions. Data. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. These monsoon depressions have a south-to-north trajectory, with turns towards the northwest and west deflected by the Meghalaya Plateau. The central (excluding Dhaka) and west areas also showed comparatively higher values, while low but irregularly distributed values were observed in the central to north–east regions (Figure 3(b)). Morning Humidity : 95% Evening Humidity : 66% Surface Pressure : 1016.5 hPa Only the northern and eastern regions had PCI values that fell within the irregular distribution class (Figures 4(g)–4(i)). Temperature in Bangladesh averaged 24.82 celsius from 1796 until 2015, reaching an all time high of 29.79 celsius in May of 1979 and a record low of 14.79 celsius in January of 1819. Temperature in Bangladesh decreased to 18.44 celsius in December from 23.08 celsius in November of 2015. Daily Rainfall Data 1007. For the JF period, the south-southeast region showed a more moderate precipitation distribution than the north–west region, while the opposite was observed for the ON period (Figures 4(a) and 4(j)). This coincided with the spring and hot season, where precipitation was more irregularly distributed. Sunrise : 6:20 AM Sunset : 5:09 PM. The Climate Research Unit (CRU) data are also used for understanding of the model performance. For all regions, the annual PCI values were moderate and irregular, and the six-month (JJ and JD) PCI values were irregular to moderate. A geographic information system (GIS) was used for the development of a regional variation map to which we applied the inverse distance weighted method. The distribution of the annual PCI varied from <14 in the north–east (along Sylhet, Srimangal) to >18 in the north and south–east (Figure 3(a)) near the Bay of Bengal, where a moderate-to-irregular precipitation distribution was observed. Although there is no single research method that can comprehensively examine changes in precipitation over time, it is worth considering how different methods can be applied to certain situations [24]. So it is much drier and warmer than in the most parts of the US or Central Europe. Moreover, same conditions were found during Monsoon periods. The authors declare that there are no conflicts of interest regarding the publication of this paper. These are consistent areas of high altitude where soil conditions and growth capabilities differ from the rest of the country. Then, we defined uniform, moderate, irregular, and highly irregular precipitation distributions and seasonal variations for specific regions. ReliefWeb Labs projects explore new and emerging opportunities to improve information delivery to humanitarians. Bangladesh is a low-lying river-dominated country consisting primarily of flat plains. The Köppen-Geiger climate classification is Aw. Iskander et al. Bangladesh is one of the world’s most vulnerable countries for climate change. A sub-tropical monsoon climate is strongly active, and the country is sometimes affected by tropical cyclones [32]. Report. Daily Rainfall Data; License . Results of analysis of 40,476 cases of Bangladesh occurring during 2000–2017 indicated that 49.73% of the dengue cases occurred during the monsoon season (May–August) and 49.22% during the post-monsoon season (September–December). During winter (NDJF), strong irregularities occurred in all decades (1980–1989, 1990–1999, and 2000–2011) while, irregular distributions occurred in the south–west and north–east regions during 1980–1989 and 1990–1999 (Figures 5(a)–5(c)). Three-month PCI changes in different periods from long-term mean PCI (1980–2011) (series 1= 1980–1989, series 2 = 1990–1999, and series 3 = 2000–2011). These climate data were interpolated from the respective meteorological stations located in … The three-month PCI values were highest in the north and south–east and lowest in the central and north–east regions, depending on the annual weather conditions. The annual trend of PCI has increased by maximum in majority of the stations for most of the periods whereas the SupraSeasonal PCI of July–December has decreased in two third of the stations (Table 2). Dhaka has dry periods in January, November and December. In this study, we considered the rainfall distribution over different spatial and temporal scales from 1989 to 2011. We collected 46 years (1971-2016) climate data on monthly average temperature and monthly average rainfall from the Bangladesh Meteorological Department, Dhaka. During the six-month analysis, the JJ (January–June) period was very irregular, whereas the JD (July–December) period showed a moderate precipitation distribution. International Journal of Integrated Sciences & Technology 3 (2018) 16-23 Study of a Heavy Rainfall Event in Bangladesh Using Global Satellite Mapping of Precipitation Data J. Hossain*, A. T. M. S. Azam, M. A. Khatun and M. Rafiuddin Department of Physics, Bangladesh University of … The variation of precipitation distribution in Bangladesh is a unique characteristic for climatic change. Data and Resources. List of organizations that are actively providing ReliefWeb with content. However, data also showed that, since 2014, these trends have been changing, and dengue cases have been reported durin… Subjects admitted to the adult … For most decades, the three month PCI values showed variations in precipitation concentration, with the exception of JFM and JAS during 1990–1999 and 1980–1989. BD, Bangladesh; NNWR, north-northwest region; CR, central region; ESER, east-southeast region; SSWR, south-southwest region. 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. The major objective of this research was to analyze rainfall trend and irregular distribution over the study area at various temporal intervals. Policy implications for livelihood development,”, F. Ndamani and T. Watanabe, “Influences of rainfall on crop production and suggestions for adaptation,”, M. Gocic, S. Shamshirband, Z. Razak, D. Petković, S. Ch, and S. Trajkovic, “Long-term precipitation analysis and estimation of precipitation concentration index using three support vector machine methods,”. Mean two-month PCI during (a) JF; (b) FM; (c) MA; (d) AM; (e) MJ; (f) JJ; (g) JA; (h) AS; (i) SO; (j) ON; (k) ND; (l) DJ. During the AMJ period, which generally exhibited a moderate distribution, only the north–east region showed a uniform distribution (Figures 6(d)–6(f)). Md. PCI is an indicator of rainfall concentration and rainfall erosivity [28]. The two-month PCI analyses indicated that precipitation variation was mostly found in seasonal transition periods. According to the analysis of the PCI formulae, on annual, seasonal, and supraseasonal scales, a PCI value of less than 10 indicates perfect uniformity of precipitation distribution (i.e., the same or highly similar amounts of rainfall in each month). Due to the monsoon season, precipitation concentration increased dramatically while that in the winter season decreased. For short time periods, precipitation was strongly linked to season. The base data for this work has been collected from Bangladesh Meteorological Department. Bangladesh. In this study, the rainfall data from 30 meteorological observatory stations across Bangladesh were collected for the period 1980 to 2011. Under the geostatistical analysis, the inverse distance weighted (IDW) method was considered in the study to interpolate the PCI data of the country. Open training opportunities in the humanitarian field. Md. The JFM period showed irregular PCI values for all regions, with higher values in the south–east than those in the north–west (Figure 3(g)). On average, August is the wettest month. The daily rainfall data of Rangpur, Dinajpur and Sylhet stations were collected for the years 2004 and 2006 from either source and used in this study. This observational study examined the association of temperature, humidity and rainfall with six common climate-sensitive infectious diseases in adults (malaria, diarrheal disease, enteric fever, encephalitis, pneumonia and bacterial meningitis) in northeastern Bangladesh. 6 miles and an atmospheric pressure of 1014 mb. The AMJ period showed moderately uniform premonsoon PCI values (Figure 3(h)), which is a period that normally experiences increasing rainfall from April to reach moderate levels during May and June [39]. While the severity of the flooding was not record breaking, the persistent nature of the rain kept conditions primed for flooding for about 75% of the year. The decadal analysis showed that the annual PCI values varied over time and exhibited an irregular distribution. OCHA coordinates the global emergency response to save lives and protect people in humanitarian crises. 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