Surface Temperature Dynamics in Response to Land Cover Transformation

Morshed, Syed Riad; Fattah, Md. Abdul; Rimi, Asma Amin; Haque, Md. Nazmul

doi:10.33736/jcest.2616.2020

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…About 1.5 million people live in Khulna city within an estimated area of 45.65 sq km (Morshed et al , 2020). About 0.2 million (200 thousand) people live in 520 slums scattered across the city.…”

Section: Methodsmentioning

confidence: 99%

Access to basic services during the transition from MDGs to SDGs: more rhetoric than reality in a Bangladesh slum

Haque

Saroar

Fattah

et al. 2020

JHASS

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Purpose This paper aims to assess the progress in the provision of basic services in urban slums in Bangladesh during the transition period of millennium development goals (MDGs) to sustainable development goals (SDGs). Design/methodology/approach The study used a mixed method of research. The empirical part of the research was conducted in three Blocks of Rupsha slum in Khulna city. Randomly selected 120 households were interviewed through a structured questionnaire; three focus group discussion sessions (FGDs) were also conducted. Progress in the slum residents’ access to basic services during the transition from MDGs to SDGs is tacked based on primary data. The User Satisfaction Index (USI) and Network Analysis tools in ArcGIS are used to identify the gaps in service provision. Findings Findings show that a very significant proportion of families (56.67%) encounter an acute level of difficulties to gain smooth access to water services. About 89% of respondents have only access to a common or shared toilet facility where one common toilet is used by 20–25 persons. About 31% of families are unable to send their children to primary school even after four years of the adoption of SDGs. Achievements in most indicators of basic services in the slum are in general lower than the national level. Moreover, there exists spatial variability within the same slum. After four years of the transition from MDGs to SDGs, most of the services are poorly satisfying the residents of the Rupsha slum, and water service provision is in worse condition. The findings of this study have unveiled that while achievement in target areas is appreciable at the macro level, at the micro-level; however, good achievement in the provision of few basic services in the low-income settlement is more rhetoric than reality. Therefore, a lot more work needs to be done during the SDG phase to give the slum residents a decent quality of life as they have missed the MDGs’ train. Originality/value Study single-out works need to be done during the SDGs phase to give the slum residents a decent quality of life as they have missed the MDGs’ train.

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Section: Methodsmentioning

confidence: 99%

Access to basic services during the transition from MDGs to SDGs: more rhetoric than reality in a Bangladesh slum

Haque

Saroar

Fattah

et al. 2020

JHASS

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“…As there are no uniform method of classification of vegetation in remotely sensed data in Bangladesh, the United States Geological Survey's general system of classification has been followed [29]. On which the NDVI value is ranging from -1 to +1 [30]. Based on NDVI values, a total of four levels of ground cover have been identified: ≤0.1 is Non-vegetation, >0.1 to ≤0.3 is Sparse Vegetation, >0.3 to ≤0.5 is Moderate Vegetation, and >0.5 to ≤1 is Dense Vegetation [28].…”

Section: Methods Of Raster Calculationmentioning

confidence: 99%

The Geo-Spatial Approach to Detect the Change in Vegetation and Land Surface Temperature (Lst) After Formation of Rohingya Settlements in Bangladesh

Mahi¹,

Sharif²,

Rudra³

et al. 2021

JCEST

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The goal of this study is to examine the effects of Rohingya Influx specially on vegetation land cover and LST in Teknaf Peninsula, Cox’s Bazar, Bangladesh over time. For doing so, the research followed three steps. Firstly, the primary and secondary data were collected from prescribed sources like LANDSAT 8 images from Earth Explorer (USGS) and the Shapefiles were collected from secondary sources. Then, Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) functions are explored in geospatial environment to assess the effect of deforestation on the region. Finally, A correlation is shown between LST and NDVI for making a decision from the environmental perspective. The findings state that, the region around the Rohingya Camps progressively lost its vegetation density as a result of increasing deforestation. According to this analysis, there was 87.87 % vegetation cover in 2013, which gradually decreased before the Rohingya Invasion in 2017. After the incident in 2018, vegetation cover drops to 75.67 %. Similarly, area with no vegetation increased more rapidly than others. The outcome showed that the transition in land cover was quicker and more noticeable in recent time. As a result, the LST has been increasing over the years. According to the study, there were around 8.71 % of areas with high temperatures in 2013, which increased to 36.86 % in 2020. It indicates that a large quantity of vegetation has been lost as a result of deforestation, and the LST of this region has changed dramatically. Furthermore, data was examined by Union to assess the individual effect from 5 Rohingya camps, and it was discovered that the situation in Teknaf Union is terrible, while the situation in Baharchhara Union is comparably better. Finally, the results of the research encourage an extensive regional environmental policy to eradicate this problem. To recompense the loss of nature govt. and responsible department should take necessary steps like hill conservation or tree plantation.

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“…where NIR is the near-infrared band, and RED is the red band. These indices have characteristic values between −1 and 1 [84] where NIR is the near-infrared band, and RED is the red band. These indices have characteristic values between −1 and 1 [84].…”

Section: Normalized Difference Vegetation Index (Ndvi)mentioning

confidence: 99%

Land Use/Land Cover Change Detection and NDVI Estimation in Pakistan’s Southern Punjab Province

Raza

Syed

et al. 2023

Sustainability

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Land use/land cover (LULC) changes are among the most significant human-caused global variations affecting the natural environment and ecosystems. Pakistan’s LULC patterns have undergone huge changes since the 1900s, with no clear mitigation plan. This paper aims to determine LULC and normalized difference vegetation index (NDVI) changes as well as their causes in Pakistan’s Southern Punjab province over four different periods (2000, 2007, 2014, and 2021). Landsat-based images of 30 m × 30 m spatial resolution were used to detect LULC changes, while NDVI dynamics were calculated using Modis Product MOD13Q1 (Tiles: h24 v5, h24 v6) at a resolution of 250 m. The iterative self-organizing (ISO) cluster method (object meta-clustering using the minimal distance center approach) was used to quantify the LULC changes in this research because of its straightforward approach that requires minimal human intervention. The accuracy assessment and the Kappa coefficient were calculated to assess the efficacy of results derived from LULC changes. Our findings revealed considerable changes in settlements, forests, and barren land in Southern Punjab. Compared to 2000, while forest cover had reduced by 31.03%, settlement had increased by 14.52% in 2021. Similarly, forest land had rapidly been converted into barren land. For example, barren land had increased by 12.87% in 2021 compared to 2000. The analysis showed that forests were reduced by 31.03%, while settlements and barren land increased by 14.52% and 12.87%, respectively, over the twenty year period in Southern Punjab. The forest area had decreased to 4.36% by 2021. It shows that 31.03% of forest land had been converted to urban land, barren ground, and farmland. Land that was formerly utilized for vegetation had been converted into urban land due to the expansion of infrastructure and the commercial sector in Southern Punjab. Consequently, proper monitoring of LULC changes is required. Furthermore, relevant agencies, governments, and policymakers must focus on land management development. Finally, the current study provides an overall scenario of how LULC trends are evolving over the study region, which aids in land use planning and management.

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Surface Temperature Dynamics in Response to Land Cover Transformation

Cited by 15 publications

References 23 publications

Access to basic services during the transition from MDGs to SDGs: more rhetoric than reality in a Bangladesh slum

Access to basic services during the transition from MDGs to SDGs: more rhetoric than reality in a Bangladesh slum

The Geo-Spatial Approach to Detect the Change in Vegetation and Land Surface Temperature (Lst) After Formation of Rohingya Settlements in Bangladesh

Land Use/Land Cover Change Detection and NDVI Estimation in Pakistan’s Southern Punjab Province

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