Remote sensing in evaluating

In this study, we mapped and evaluated LULC changes in Huong Hoa district, Quang Tri province, over a period of 10 years based on Landsat 8 satellite image data processed on ArcGIS software. On that basis, we carried out the simulation of the LULC change for 2033 using the QGIS MOLUSCE plugin.

13p viritesh 02-04-2024 7 1   Download

This paper evaluates the level of suitability of applying GIS, EuroSAT dataset, and Convolutional Neural Networks to recognize residential land in Thua Thien Hue, Vietnam. We employed EuroSAT dataset to train and validate the ResNet152 model. Then, the assessed model was used to detect residential land in the location.

17p viritesh 02-04-2024 8 1   Download

This study focuses on monitoring the variation of surface soil moisture (0- 1 cm) and ground soil moisture (0÷1 m) in the soil in Dak Nong province using Sentinel-1 radar images received in December 2017. Active radar signals utilized in this method were sent and received using short wave pulses. The intensity of the received signal is compared to determine the scattering coefficient of the surface.

8p viwolverine 07-07-2023 5 3   Download

The research "Evaluation of drought on agricultural land-use change: A case study of coastal districts, Ben Tre province" aimed to develop a remote sensing approach, using time series data to assess drought development for the coastal districts (Ba Tri, Binh Dai, and Thanh Phu) in Ben Tre province.

10p tieuvulinhhoa 22-09-2022 10 2   Download

Soil erosion is a naturally occurring process in mountainous areas that affects all landforms. Located in Central of Vietnam, in the tropical monsoon climate Da Nang City is characterized by more than 70 percentage of area with hilly and mountainous topography. This study is objective apply the Universal Soil Loss Equation (ULSE) model developed by Wischmeier and Smith (1978) integrating with remote sensing data and Geographical Information System (GIS) tool to evaluate soil erosion risk in Da Nang City, Vietnam.

11p viindranooyi 04-05-2022 12 2   Download

Climate change and accelerating socioeconomic developments increasingly challenge environmental problems in the Vietnamese Mekong Delta (VMD) – a typical large, economically dynamic, and highly vulnerable delta. The amount of people exposed to climate changes in VMD is estimated to increase shortly. This paper collects information of the important discoveries about future climate changes from the global climate models (GCMs) indicating that VMD will likely be warmer in the future with an average temperature over 1.5o C and sea-level rise (SLR) will be 100cm in 2100s.

10p vistephenhawking 26-04-2022 13 1   Download

This study focuses on the identification of potential landfill sites in Srinagar city based on Geographic Information System (GIS) and Remote Sensing; using techniques such as Multi Criteria Evaluation (MCE) and Analytic Hierarchy Process (AHP).

14p thebadguys 15-01-2022 18 2   Download

This study, which used correlation equations of 1 year for different years of the same period (same February of all years), showed the feasibility of applying remote sensing in simulating air pollution in the area.

8p nguaconbaynhay10 29-01-2021 16 1   Download

Monitoring and evaluation of saline water intrusion is an important task, especially for agricultural production in Ben Tre province. The paper introduces a new solution in the application of Landsat 8 satellite imagery and field survey data to determine the soil electrical conductivity (EC) for soil salinity assessment through the distribution of EC indice value.

11p larachdumlanat129 19-01-2021 29 1   Download

Agro-land Suitability is a process of evaluation of agriculture land, which measures the degree of appropriateness of agricultural land for the use of particular crop that can best support that crop to be grown and maximise the yield. The aim of this study was to find the suitable land for rice so that yield of rice get maximise and fulfill the demand of growing population. The study was carried in Bhal region of Gujarat, where agriculture is preferred as mainstay but production get fluctuated due to improper selection of cultivated crop.

8p angicungduoc6 22-07-2020 21 1   Download

Maps have long been identified as a political document aimed at structuring human senses, expectations, desire and notion on the space around. Developments in Geographic information technology which combines GIS, Remote Sensing and GPS has created new avenues in mapping and spatial decision making. Advent of FOSSGIS and Web GIS has further simplified data availability and analytical capability. These new technological advances have helped the use of critical mapping which is a set of new mapping practices and theoretical critique grounded in critical theory.

8p angicungduoc5 14-06-2020 12 0   Download

The present study was undertaken to prepare land use plan for Dorika watershed of Sivasagar District in Assam based on soil site suitability evaluation of crops. The area coverage of this watershed comprises between 260 ׳48 to 270 ׳03 N latitude and 940 ׳27 to 940 ׳52 E longitude. The watershed boundaries were delineated based on Survey of India toposheet (1:50,000) no. 83J/13, 83J/9, 83I/12 and I/8 and. R2 L4 MX Remote sensing data.

11p angicungduoc5 14-06-2020 9 1   Download

The Temperature Vegetation Dryness Index (TVDI) with the combination of LST and NDVI index, was used as an indicator for drought risk assessment in Cu Chi District in 2005, 2010, 2015, and 2020. The results show a significant increase in dry areas between 2005- 2010 and 2015-2020. On the other hand, the results of the TVDI index and mapping drought of Cu Chi district on February 13, 2005, February 11, 2010, January 24, 2015 and February 23, 2020 are a basis for risk assessment and drought monitoring.

12p quenchua5 14-05-2020 9 1   Download

Soils of Paschimi Nayyar river watershed in Pauri Garhwal district of Uttarakhand, India were identified and characterized using remote sensing and GIS techniques. They area falls in warm humid Himalayan ecosystem. On the basis of interpreted remote sensing image data and field checks four major physiographies viz., escarpments, hill/ridge tops, side/reposed slopes and valleys were identified which were further sub divided into 8 physiographic units based on image elements and slope functions.

13p kethamoi4 16-04-2020 14 2   Download

This paper presents an integration approach involving Remote sensing / Geographic information system(RS /GIS) and hydrological models to characterized and quantify the effect of land use/ land cover (LULC) change on basin hydrology parameters. The Arc SWAT model was used daily weather and stream flow data of Upper Narmada basin from 1989 to 2011. Study evaluates change in Surface runoff, Evapo-transpiration, Total water yield, stream flow and Total aquifer recharge. Further analysis present additional evidence that changes in vegetation cover altered the hydrological response to region.

5p cothumenhmong4 25-03-2020 22 1   Download

This study presents a land use pattern classification of satellite imagery. The Machine learning algorithms are overseen to pattern classifications. The supervised classifier is identifying the classes using trained set. Compiled classification has to be improvised using efficient algorithms with appropriate threshold values. The statistical significance of satellite image classifies into essential classes is of greater importance in remote sensing pattern classification methods.

10p caygaocaolon2 14-03-2020 13 0   Download

Soils of Bino-river watershed in Almora district of Uttarakhand, India in north western Himalayas were characterised and classified for land categorisation and perspective land use planning. On the basis of interpretation of remote sensing data and ground truth verification three broad landforms viz., ridge tops, side slopes and valleys were identified and further sub-divided into seven landform units based on slope gradients. Nine types of soils (Pedons 1 to 9) were identified in the watershed area.

16p kequaidan2 11-12-2019 13 1   Download

Remote sensing has several advantages in the field of agronomical research purpose. The assessment of agricultural crop canopies has provided valuable insights in the agronomic parameters. Remote sensing play a significant role in crop classification, crop monitoring and yield assessment. The use of remote sensing is necessary in the field of agronomical research purpose because they are highly vulnerable to variation in soil, climate and other physico- chemical changes.

14p nguaconbaynhay1 04-12-2019 27 2   Download

Soil organic carbon (SOC) content is key component of the global carbon (C) cycle which is highly variable with respect to space and time. The main objective of this study was to provide an assessment of soil organic carbon (SOC) stock variability for Uttarakhand state. The other objective of this study was to evaluate the performance of different pedotransfer functions for reliable assessment of bulk density. Soil Resource Mapping for Uttarakhand state was conducted on 1:50,000 scale with the help of Satellite imagery (LISS III) along with exhaustive ground truthing through soil surveys.

13p nguaconbaynhay1 04-12-2019 38 3   Download

This study aims to evaluate the reduction of evaporation of Lake Nasser’s water caused by disconnecting (fully or partially) some of its secondary channels (khors). This evaluation integrates remote sensing, Geographic Information System (GIS) techniques, aerodynamic principles, and Landsat7 ETM+ images.

8p kethamoi1 20-11-2019 13 0   Download