Monitoring Environmental Problem Using GIS and Remote Sensing Technology : A Case Study of Shamnagar Upazila, Bangladesh

Abstract

Development of shrimp for the most part in impromptu way has been considered as one of the major natural fiascos of Shamnagar Upazila (Sub-region), People's Republic of Bangladesh. Villagers encompassing the waterways are chiefly required with angle (shrimp) development. Along these lines, ripe farming area has been changed over to shrimp development. Ordinary techniques for gathering this data are moderately tedious. Oppositely, Remote Sensing satellite perception with its remarkable capacity to give financially savvy bolster in ordering the most recent data about the common assets. RS, in conjunction with GIS, has been generally connected and been perceived as a capable and successful apparatus in distinguishing land utilize and arrive cover changes. RapidEye and Landsat8 pictures were utilized to distinguish arrive utilization of the region amid the period 2008 and 2015. Google pictures were utilized to recognize the smaller scale level land utilize highlights of a similar period. Multi-phantom groupings utilizing unsupervised and directed order were done and comes about have been looked at in view of the field examination . The investigation uncovers that amid the period 2008 to 2015 farming practice has been lessened from 34.5% to 21.5% and shrimp development territory expanded from 38% to half. Because of the effect of high saltiness and salt water interruption agrarian exercises is diminished and agriculturists have been changed over to different practices, subsequently shrimp cultivating is picking up prevalence in the region. Rustic settlement has been marginally expanded and entomb tidal territory has additionally been expanded to 02% because of the impact of twister.