Md Zakaria Salim

GIS Database Preparation
Project Report Writing
Physical Feature Survey Coordination
Preparation of Maps as necessary
Assisting in collection and synthesis of primary quantitative and qualitative data
Preparing GIS map and conducting different types of survey
Focus Group Discussion (FGD) and Key Informant Interview (KII)
Preparing concise field observation reports

Floods in India are extremely frequent owing to their geographical position. Recently, the formation of Cyclone Yaas over the Bay of Bengal struck the Indian state of Odisha, causing severe devastation to a larger extent. This study aimed at developing a methodology for rapid mapping of potential flood-affected areas exploiting Sentinel-1 synthetic aperture radar data through the usage of ground range detected images to mitigate the extent of flood damage and make a quick response. Sentinel-1 images from Pre-flood date: May 17, 2021 (The Archive Image) and post-flood date: May 29, 2021 (The crisis Image) were used from pre-processed products made available by the European Space Agency (ESA), which can be quickly treated for information extraction through different algorithms. Flooded areas appeared in red as there was a high response in the red channel but a low response in both the green and blue channels. Uniformly dark return given that will have a low backscatter return both in the archive and crisis image for which in red, green, and blue have a lower response. Finally, flood maps could be distributed to the local community to expedite aid in flood-prone areas. The data and methodology of the study could be replicated from time to time for flood mapping with high precision of flood-affected areas as the European Space Agency (ESA) offers free products i.e., systematically archived data for 24h with a high repetition rate (six days) to the public for flood analysis.

Parks are an important feature of urban areas that not only provide a better living environment but also help to maintain ecological balance. This study aims to investigate the spatial distribution of existing parks as well as identify the served, unserved, and overserved areas of these parks in Khulna City. A reconnaissance survey was done to find out the location of the parks, and then analysis was done by GIS (the network analysis tool). It was found that 20 wards have no access to parks. Then, comparing with standards, it was evident that grossly, parks are adequate for Khulna City, but in the real-life scenario, they are not distributed properly over the area. Through the study, it was found that wards, e.g., ward no. 14, ward no. 22, ward no. 25, etc., have no access to parks, whereas some wards, e.g., ward no. 20, ward no. 23, ward no. 27, etc., are under more than one park service area. So proper planning is required, and hence the proposed sites for the parks in Khulna City can be developed through further study. The reasons behind the clustering of the parks were explained by previous case studies and the land use type of the area. Most of the parks are situated either in close proximity to residential areas or near the CBD (Dakbangla). With the passage of time, population density increased over the whole city, but new parks were not established for the new encroachment of the city expansion.