Our Laboratories

CRHLSR is dedicated to conduct research on critical water resources issues of Bangladesh. Here is the brief overview several conducted and ongoing research projects.

CRHLSR-003: Remote sensing based rainfall characterization: Spatial analysis and temporal trend

Duration: 2018-2019

Project Leader :    Prof. Dr. Md. Reaz Akter Mullick

Project Member:    Ahad Hasan Tanim

Research Associate: Mr. Soumik Sikdar

Project summary: Precipitation is discontinuous and highly variable in both space and time and intimately associated with the climate/hydrologic process of a region. Comprehensive coverage from sparsely gauged ground based observation displays small scale spatial variability and abnormal statistical result. Although under climate change the spatial variability of rainfall in Bangladesh gradually increasing, the step toward establishing a dense rain-gauge network still far away. Moreover, in recent year the atmospheric river events from tropical cyclone have significant contribution on monsoon rainfall. Therefore, to understand the regional climate it is important to analyze and reliability of available precipitation products from satellite derived and reanalysis model result. It is expected that this study could offer an insight on the statistical and spatiotemporal trend of rainfall over Bangladesh.

CRHLSR-002: Multi Criteria Based Analysis of Coastal Flood Hazard

Duration: 2017-2019 (Completed)

Project Leader :    Prof. Dr. Md. Reaz Akter Mullick

Project Member:    Ahad Hasan Tanim

Research Associate: Md. Samiul Islam

Project summary: Tropical Cyclone globally regarded as most devastating phenomena in terms of property loss and human death rate. Northern Bay of Bengal near Bangladesh coast well recognized as breeding ground of deadliest storm surge around the world. In compared to Arabian ocean the cyclone frequency in Bay of Bengal reported as more than four times during pre-monsoon (April and May) and post monsoon (October and November) season. Several factors i.e. shallow coastal water, convergence of the bay, high amplitudes of astronomic tide, favorable cyclone track, numerous tidal inlets with Ganga- Brahmaputra-Meghna estuary etc. can create the disastrous  surge  along the densely populated inland of Bangladesh. This study aims to develop a coastal vulnerability map incorporating the coastal characteristics, forcing and socio-economic conditions of the coastal districts of Bangladesh. A geo-spatial vulnerability assessment framework is developed to confer high resolution vulnerability information.

CRHLSR-001: Potentialities of Low Flow Restoration in Karnafuli-Halda River

Duration: 2017-2019

Project Leader :    Prof. Dr. Aysha Akter

Project Member:    Ahad Hasan Tanim

Research Associate: Shoukat Ahmed 

Project summary: Halda River is a spawning ground of Major Carp fish like Ruhi, Katal, Mrigel and Kaliboush. At a suitable juncture of ‘Joe’ (full-moon night and dark fortnight) and in congenial weather condition accompanied by rainfall, the brood fishes start releasing fertilized eggs (locally known as Swarna Renu - gold sperm) in several spots of Halda. But due to hydrological alteration, such as manmade dam construction along the river, changing rainfall pattern, increasing salinity spawning rate of those ecological habitats got declined. To ensure suitable spawning condition this study aims to develop an integrated hydrologic (SWMM), hydrodynamic (HEC-RAS, Delft-3D) and ecological habitat (PHABSIM, River2D, CASiMiR) modeling framework. Moreover the salinity intrusion in Karnafuli River was also investigated in Delft3D model to observe the spatial and seasonal variation in Halda-Karnafuli River Network.