NDWI assessment over the years in assam?5 answersThe assessment of NDWI (Normalized Difference Water Index) over the years in Assam was conducted in the Bordoibam Beelmukh wetlandscape of Dhemaji district using remote sensing techniques. The study analyzed NDWI values from 2008 to 2013, revealing significant changes in water cover areas of the wetlandscape over time. The research observed distinct categories of per pixel change detection based on NDWI results, including areas with increased and decreased water cover percentages. This analysis highlighted the dynamic nature of water bodies in the study area, indicating fluctuations in water presence over the years. Such assessments are crucial for monitoring and understanding changes in water resources, aiding in effective water resource management and conservation efforts in Assam.
NDWI assessment over the years in india?5 answersNormalized Difference Water Index (NDWI) assessment in India has been a significant focus in various studies. Research in Sri Muktsar Sahib district of Punjab utilized NDWI for waterlogged area extraction, highlighting its effectiveness in differentiating water features. Additionally, a study on the Ukhma River Basin in Central India utilized NDWI to measure variations in water resources from 2006-2019, indicating changes in surface runoff and infiltration rates. Furthermore, the assessment of global publications output on nano-enabled drug delivery (NEDD) in India from 1995-2018 showcased the country's research growth rate, with NDWI being a part of the quantitative and qualitative description of NEDD research. These studies collectively emphasize the importance and utility of NDWI assessments over the years in India for various applications related to water management, environmental monitoring, and scientific research.
NDWIassessment over the years?4 answersThe assessment of Normalized Difference Water Index (NDWI) has shown improvements over the years. In a study analyzing the Pantanal wet and flooded areas, it was found that the Gao NDWI method provided better results compared to the McFeeters NDWI method. The Gao method showed an improved relationship between near infrared (NIR) and shortwave infrared (SWIR), allowing for a more focused spectral behavior of each target at certain intervals. Additionally, the error rate in molecular genetic testing has decreased significantly over the years, indicating an improvement in the quality of genetic testing. External Quality Assessment (EQA) programs have played a key role in this improvement, with recommendations such as using two different methods for genotyping and identifying inappropriate methods for certain sequence variations. These findings highlight the importance of continuous evaluation and improvement in assessment methods to ensure accurate and reliable results.
What is health assessment on mangrove forest?5 answersHealth assessment of mangrove forests involves evaluating the condition and quality of the mangrove ecosystem. It is important for the effective management and conservation of mangroves. Various methods and indicators are used to assess mangrove health. Remote sensing data and satellite imagery are commonly used to monitor mangrove distributions and assess patterns of change in mangrove areas. Vegetation indices, such as GNDVI, SAVI, and TSAVI, derived from satellite imagery, can be used to identify and classify mangrove health into different categories. Stand structure parameters, including tree height and crown segmentation, can be interpreted using visible light remote sensing images from Unmanned Aerial Vehicles (UAV) to evaluate the health status of mangrove forests. Additionally, the composition of mangrove species, faunal biodiversity, and the structure of the fauna community can be used as indicators to determine the health condition of mangrove forests. Assessing mangrove health helps in understanding the impacts of human activities, such as land conversion and pollution, and aids in making informed decisions for the conservation and sustainable management of mangrove ecosystems.
How can NDRE be used to better understand the Caatinga biome?5 answersNDRE (Normalized Difference Red Edge) can be used to better understand the Caatinga biome. The study by Oliveira et al. compared recovered Caatinga (dense Caatinga, DC) and degraded Caatinga (sparse Caatinga, SC) using NDRE derived from satellite data. They found that NDRE values were higher in the DC, indicating greater vegetation health and productivity. Additionally, the study by da Costa-Pinto et al. compiled records of small mammals in the Caatinga biome and found that NDRE data can be used to study habitat use and landscape ecology, providing valuable information for conservation efforts. These findings suggest that NDRE can be a useful tool for assessing vegetation health and understanding the ecological dynamics of the Caatinga biome.
What is the impact of human activity on the degradation of the environment in the El Kala National Park?5 answersHuman activity has had a significant impact on the degradation of the environment in the El Kala National Park. The study by Saadali et al. found that the water in the park is slightly acidic and mineralized, with high levels of salinity in the eastern Lake Watershed of Tonga. Additionally, the presence of high concentrations of PO4 3in the water indicates pollution from intense soil fertilization and decomposition of organic substances from urban waste, leading to eutrophication. This pollution is further supported by the moderate to strong degree of pollution found in both ground and surface waters. These findings highlight the worrying truth of human influence on ecosystem and water sustainability in the El Kala National Park.