English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The Brahmaputra basin covers a geographical area of 580,000 km, spreading over China, India, Bangladesh and Bhutan. India is the middle riparian country between China and Bangladesh on the Brahmaputra river which originates from the Angsi glacier in Tibet. The catchment of the Brahmaputra within India spreads across the states of Arunachal Pradesh, Assam, Meghalaya, West Bengal, Nagaland and Sikkim. Flooding is a regular phenomenon in the lower catchment of the Brahmaputra. This study focusses on the recent flood event (2017) in Kaziranga National Park (KNP), Assam (Figure 1). The park incorporates parts of the Brahmaputra and areas falling in Sonitpur, Golaghat and Nagaon districts (Figure 1). The Park is popular for great Indian one-horned rhinoceros (Rhinoceros unicornis). However, other animals such as elephants, tigers, wild buffaloes, ungulates, wild boars, etc. are also found in the park. In 1985, the United Nations Educational, Scientific and Cultural Organization (UNESCO) declared KNP as a World Heritage Site for its unique natural environment. The Brahmaputra, along with its tributaries and distributaries, causes floods almost every year in Assam, resulting in the loss of human lives, livestock, and wildlife besides damage to property and infrastructure. KNP is the most flood-affected National Park in Assam. Around 74% of the area of the park (excluding the river and other water bodies) is grassland, which is the most favourable as natural habitat for rhinos and other animals. Hence, flood monitoring and assessment of loss in a biodiversity-rich area like KNP is a necessity using repetitive coverage of satellite data. Satellite remote sensing has long been used as an essential tool for flood assessment and as complementary information for flood modelling and forecasting. One of the advantages of the remote sensing data is that they can provide information on large area in near real-time. Moreover, many of these datasets are freely available in the public domain. The main objective of the present study was to use freely available remote sensing dataset to assess recent flood situation (2017) of KNP. We used three datasets, viz. SARAL/ ALtiKa (a radar altimeter), Landsat 8 OLI (Operational Land Imager) and allweather Sentinel-1 satellite operating in the C-band. Land-use and land-cover map for KNP was prepared using Landsat 8 OLI (Figure 2). Pre-flood Sentinel data of 25 February 2017 and post flood data of 12 August 2017 were used to map different levels of inundation categories in KNP (Figure 3). The water levels of the Brahmaputra were measured from radar altimeter of SARAL/ALtiKa, a joint mission of Indian Space Research Organisation (ISRO) and Centre National d’Études Spatiales (CNES). These two datasets were chosen such that one represented lean season and the other

Recent Flood Event in Kaziranga National Park, Assam, India as Assessed Using Remote Sensing Data