Questions have emerged over the accuracy of rainfall data collected by the Bangladesh Water Development Board (BWDB), as several of its rain gauge stations were found to be installed under large trees or in shaded areas, violating international standards. Field inspections revealed discrepancies of 21 to 43 millimeters between BWDB and Bangladesh Meteorological Department (BMD) readings in the same regions, including Sylhet, Kurigram, and Netrokona. Experts warned that such flawed data could undermine climate research, flood forecasting, and disaster management, though BWDB officials claimed the impact was limited.
According to the World Meteorological Organization, rain gauges must be placed at least twice the height of nearby obstacles to ensure accurate readings. Despite spending about 700 million taka under the BWCSRP project to modernize weather stations in 2020–21, many installations failed to meet basic standards. BWDB engineers cited land constraints, tree growth, and security issues as reasons for noncompliance. Meanwhile, experts from BUET emphasized that inaccurate rainfall data could distort infrastructure design and research outcomes.
Specialists urged the government to strengthen data quality control, noting that reliable rainfall information is essential for effective water and climate management.
মাহমুদ আশিক প্রকাশ : ০৬ জুলাই ২০২৬, ০৮: ৪২আপডেট : ০৬ জুলাই ২০২৬, ০৯: ৪০ দেশে বৃষ্টিপাতের তথ্য কতটা নির্ভুল, তা নিয়ে নতুন করে প্রশ্ন উঠেছে। সরেজমিন দেখা গেছে, বাংলাদেশ পানি উন্নয়ন বোর্ডের (পাউবো) কয়েকটি বৃষ্টি পরিমাপক কেন্দ্র আন্তর্জাতিক মানদণ্ড উপেক্
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