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Analytical Study and Monitoring of Winter Events in Bangladesh Using Satellite Data

S. Begum
Bangladesh Space Research and Remote Sensing Organization (SPARRSO)

M. A. Muhammad
Bangladesh Space Research and Remote Sensing Organization (SPARRSO)

S. Chakma
Bangladesh Space Research and Remote Sensing Organization (SPARRSO)

S. B. Shaha
Bangladesh Space Research and Remote Sensing Organization (SPARRSO)

Abstract/ Executive Summary:

In recent years Bangladesh has experienced numerous winter events during the winter. In January 2010, northern and southwest parts of the country experienced a rapid fall in temperature with cold winds and dense fog. In January 2011 the Meteorological Department recorded the temperature as 2 to 5 degrees Celsius lower than the normal average temperature (about 10°C) during that time of the previous year’sresulting significant rise in respiratory illnesses, and in some cases deaths. Some prior arrangement should be made and preparatory measures should be taken by the respective departments, agencies to protect the affected people.Monitoring and prediction prior to the events is thus necessary. Satellite data are very useful for monitoring and analytical study of such natural events and their directional movement. SPARRSO monitors the formation, duration and movement of cold wave as one of its regular activities relating to disaster management, based on data received at its own ground station. In this paper,monitoring of winter events and their analytical study using satellite data has been discussed briefly.

Keywords: Monitoring, Natural events, Rapid fall, Satellite, Tropical

Location: Northern and southwest parts of the country

Start Date: 00-00-2010

End Date: 00-00-2011

Program Area: Risk Management in Agriculture

Non-commodity: Temperature

Objectives:

To monitor the formation, duration and movement of such events as well as to find out the most affected areas.

Methodology:

SPARRSO at its ground station receive space based data from different Meteorological Satellites like FY-2D, MTSAT etc. These satellite data were mainly used to monitor winter events for this study. Space based data received from other satellites like TERRA/MODIS and NOAA-series satellites are very much helpful in this regard too.Data from daily weather report provided by BMD were also used in this study.The satellite data were processed using vimsat and gmsoft software for these purposes and enhanced for clear visualization to make easy for monitoring. Analysis of data provides an indication of the origin and aerial extent of the wav.The satellite images acquired in the visible and infrared regions of the solar spectrum showed appreciable sensitivity to the presence, properties and spatial distribution of fog. The shape of the wave and its directional movement are very much visible on the satellite images.

Source of Information: J. Environ. Sci. & Natural Resources, 8(1): 165-167, 2015; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Satellite data were very useful for monitoring and analytical study of such natural events and their directional movement.

Knowledge Management: Journal