Drought, a climate-related disaster impacting variety of sectors, poses challenges for millions people in South Asia. Accurate and complete drought information with proper monitoring system is very important revealing the complex nature its associated factors. In this regard, deep learning promising approach delineating non-linear characteristics Therefore, study aims to monitor by employing remote sensing data over Asia from 2001–2016. We considered precipitation, vegetation, soil factors...

Increased human activity and dynamic climate variables have radically altered the global land use cover (LULC) pattern ecosystem services (ES) they offer. However, assessing impact of such LULC dynamics on ecological resources has rarely been attempted, especially in Bangladesh. Here, we assessed change associated service values (ESVs) coastal Bangladesh during 1999–2019 by analyzing historical Landsat images economic valuation techniques, respectively. Findings revealed a high prevalence...

Abstract Understanding present and future impacts of drought on the terrestrial carbon budget is great significance to evaluation ecosystem disturbance sink. Here, we evaluate effect vegetation net primary productivity (NPP) associated with through difference between mean NPP in normal years during a specific time period (30 years). Then, effects different types climatic zones under baseline stage (1981–2010) climate scenarios (RCP2.6, RCP4.5, RCP8.5) assessed. The results indicate that...

Water availability for agricultural practices is dynamically influenced by climatic variables, particularly droughts. Consequently, the assessment of drought events directly related to strategic water management in sector. The application machine learning (ML) algorithms different scenarios variables a new approach that needs be evaluated. In this context, current research aims forecast short-term i.e., SPI-3 from predictors under historical (1901–2020) and future (2021–2100) employing...

Urbanization is an increasing phenomenon around the world, causing many adverse effects in urban areas. Urban heat island are of most well-known phenomena. In present study, surface islands (SUHI) were studied for seven megacities South Asian countries from 2000–2019. The thermal environment and relationship between land temperature (LST), use landcover (LULC) vegetation examined. connection was explored with remote-sensing indices such as field variance (UTFVI), intensity (SUHII) normal...

Basin geomorphology is a complete system of landforms and topographic features that play crucial role in the basin-scale flood risk evaluation. Nepal country characterized by several rivers under influence frequent floods. Therefore, identifying areas paramount importance. The East Rapti River, tributary Ganga one flood-affected basins, where two major cities are located, making it to assess mitigate this river basin. A morphometric calculation was made based on Shuttle Radar Topographic...

The quantitative attribution of changes in streamflow to climate change (CC) and land cover (LCC) for the Yangtze River Source Region (YRSR), China, was assessed. We used a combination SWAT model along with statistical technique one factor at time (OFAT) innovative trend analysis (ITA) achieve study objectives. hydrology data from 1961 2016 land-cover maps 5 years’ difference 1985 2015 were used. calibrated (1964–1989) using map validated 1990–2016. This further all other this study....

Drought has devastating impacts on agriculture and other ecosystems, its occurrence is expected to increase in the future. However, spatiotemporal net primary productivity (NPP) Mongolia have remained uncertain. Hence, this paper focuses impact of drought NPP Mongolia. The events during 2003–2018 were identified using Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI). Boreal Ecosystem Productivity Simulator (BEPS)-derived was computed assess...

Drought is a very complex natural hazard and has negative impact on the global ecosystem as whole. Recently Bangladesh been experiencing by different degree of dryness consequence high climate variability, affecting crop production to great extent in last couple decades. In this context, present study was made an effort assess analyse drought characteristics based two indices, i.e., Standardized Precipitation Index (SPI) Vegetation Condition (VCI), model agricultural risk with...

East Africa (EA), lake basins (Tana, Abaya-Chamo, Turkana, Victoria, and Tanganyika), 6472,404 km2 of total area. Total water storage change (TWSC) exposes serious challenges in sustainable resources management ecosystem sustenance. While TWS changes have been increasingly studied based on Gravity Recovery Climate Experiment (GRACE) derived dataset, spatio-temporal the driving factors remain unexplored. Herein, Mann–Kendall test, Theil-Sen's slope estimator, empirical orthogonal functions...

Heat-health risk is a growing concern in many regions of China due to the more frequent occurrence extremely hot weather. Spatial indexes based on various heat assessment frameworks can be used for risks. In this study, we adopted two approaches—Crichton’s triangle and vulnerability index (HVI) identify heat-health risks Northern Jiangxi Province China, by using remote sensing socio-economic data. The Geographical Information System (GIS) overlay principal component analysis (PCA) were...

The Himalayan region, a major source of fresh water, is recognized as water tower the world. Many perennial rivers originate from Nepal Himalaya, located in central part region. Snowmelt essential freshwater for living, whereas it poses flood disaster potential, which challenge sustainable development. Climate change also largely affects snowmelt hydrology. Therefore, river discharge measurement requires crucial attention face climate change, particularly runoff model (SRM) frequently used...

The major focus of the study was to explore safety perception consumers towards vegetables in urban markets Mymensingh city Bangladesh. carried out through survey randomly selected sixty vegetable consumers. Data were collected face-to-face interview method using pre-tested schedule. Chi-square (χ√) test employed assess association between socio-economic characteristics and vegetables. Respondents area showed remarkable individual differences their characteristics. Majority respondents...

The accurate monitoring of crop areas is essential for food security and agriculture, but accurately extracting multiple-crop distribution over large remains challenging. To solve the above issue, in this study, Pixel-based One-dimensional convolutional neural network (PB-Conv1D) Bi-directional Long Short-Term Memory (PB-BiLSTM) were proposed to identify cultivated using time-series NaE (a combination NDVI EVI) as input generating a baseline classification. Two approaches, Snapshot...

Assessing and modeling the changes in land use cover (LULC) patterns associated ecosystem service values (ESV) has become an important global agenda for formulating sustainable management policies. Taking coastal region of Bangladesh (CRB) as a case study, we utilized remote sensing GIS techniques to analyze Landsat data 1999 2019 estimate effect LULC on ESVs. The classification, ESV quantification, spatial variations were performed by semi-automated per-unit value transfer, autocorrelation...

Tea is a regular export item for Bangladesh, but due to slow growth in production, the country's tea exports have declined. However, organic has great future this regard. Exploring underlying factors adoption of farming potential development production sustainable manner. Therefore, our main objective was identify influencing growers' attitudes, perceptions, and Panchagarh district Bangladesh. We adopted Theory Planned Behavior (TPB) investigate affecting farmers' belief were measured based...

The primary purpose of the study was to assess extent knowledge and perception extension workers towards ICT utilization determine relationship between selected characteristics respondents in service delivery. conducted Gazipur district comprised proportionate random sample 90 from five upazila district. A pre-tested interview schedule used collect data respondents. To measure on 35 statements were regarding 7 with possible answer each tools a score one given right zero wrong alternatively...

The study was conducted in Charfasson upazila of Bangladesh to assess the farmers’ perception on climate change, adoption smart agricultural (CSA) practices, and food security condition. primary data were collected from 120 sample respondents through face interview using a pretested schedule. Findings revealed that farmers Charland exhibited extensive individual disparities terms their socioeconomic circumstances. Respondents identified cyclones, storm surges, sea level rise, salinity...