The farmer revealed that he had taken Rs. Puducherry Chief Minister V. Narayanasamy will visit the areas affected by Cyclone Gaja, later on Friday. Allegations of the Union Government sanctioning a very small percentage of what has been demanded, have persisted for the past several years. NDVI images of pre and post cyclone. Keywords: LULC classification, Gaja Cyclone, Change Detection, NDVI Differencing Sentinel-2, plantation crops. It is moving in west-northwest direction. Gaja was named by Sri Lanka and Titli was named by Pakistan.. The situation after cyclone Gaja hit Tamil Nadu, India remains grim, with despair and anger building up over so many deaths, destruction of property and livelihoods being affected. The pattern of the changes between pre and post cyclone are presented in Table 5 and Figure 5.1. Table.3 .shows the NDVI density classes in the date of 8-9-2018 and 7-3-2019. 101-114. It is characterized by easy calculation and provides from-to change information (G.M. Cyclone Gaja: 7 districts in Tamil Nadu affected, 13 killed; Cyclone Gaja: 7 districts in Tamil Nadu affected, 13 killed After hitting Tamil Nadu’s delta region, the Indian Meteorological Department said, the cyclonic storm moved westwards and lay … Then, overall accuracy and kappa values were computed by using users accuracy and producers accuracy of each class. Cyclone Gaja crossed the Tamil Nadu coast early on Friday between Nagapattinam and Vedaranyam, leaving behind a trail of destruction besides claiming 13 lives. Asked the HS to monitor the situation & provide all help to the state admin,” he tweeted. Cyclone Gaja hit coastal areas of Tamil Nadu state with heavy rains and winds of 55 miles per hour, said Narendra Kumar, an official of the National Disaster Response Force. In South East Asia, cyclones are named by various nations. So in the presented study to raise responsiveness for the LULC change in Gaja cyclone-affected areas, two sentinel-2 images of the years 2018 and 2019 have been prepared and used to obtain NDVI images and execute image classification. The overlay consisting of LULC maps of pre cyclone andpost cyclone were made through post classification comparison. cyclone winds are named by different cautioning focuses to give simplicity of correspondence among forecasters and the overall population. The research team has already mapped area with the help of UAVs before cyclone Gaja hit the region for flood mitigation map. The resultant image was threshold based on 10% changes and the areas with 10% increase or decrease in NDVI values were demonstrated. Remote sensing has a huge impact on disaster management; previously this technology has been used in explanation of impacts caused by disasters like earthquakes, tsunamis, hurricanes, floods, wildfires. As it can be seen in this Table and Fig.4. pre and post cyclone respectively. Multi temporal satellite data set observed by sentinel-2 dated on 8 September 2018 (Fig.2) and 07 March 2019 (Fig 2.1), Multi Spectral Imager (MSI), were used for the analysis (Table 2). Previous Next. To add to this, the central teams, on most occasions, refrain from actually visiting the affected areas. The severe cyclone had a wind speed of above 90 to 100 kmph and reached up to 110 kmph when the eye of … Play solitaire and track all of the cyclocane storms at the same time at, make a donation - totally optional but completely appreciated. The main theme of this method is vegetation index produced separately, and then the second-date vegetation index is subtracted from the first-date vegetation index. Abstract:- A cyclone is one of the major hazards around the coastal area which leads to loss of life, damage to property and drastic changes in land use and land cover (LULC). Required fields are marked *. The Fig.5. TC Gaja - India. Cyclone Gaja crossed the Tamil Nadu coast early on Friday between Nagapattinam and Vedaranyam, leaving behind a trail of destruction besides claiming 13 lives. District wise Geography profile was given below: Top-of-Atmosphere reflectance products from the Scientific Hub (https://scihub.copernicus. What it also left behind is a huge trauma among those affected. The storm has turned severe and will hit Tamil Nadu today evening . But after Gaja this number had fallen drastically to 5,000 to 6,000 per acre because the spathe and inflorescence of the trees have been badly affected in the cyclone … 14:56 PM IST: Nagapattinam district has been heavily damaged by cyclone Gaja.In total, 471 relief camps have been established in which 81,948 people are staying. The land use land cover classes include agriculture land, harvested land, and wasteland, forest, built up (settlement, road), water bodies and cloud cover areas. Land use/land cover change map (pre cyclone-post cyclone). Finally, in order to the investigation of changes in NDVI values, the NDVI- change image was density sliced to the 4 categories included: areas with low, medium, high, and very high NDVI values. to pre gaja cyclone and another one is post gaja cyclone image., product codes are in the (Table 2). Hence, the results of this study confirm that, change detection procedures including NDVI and supervised classification using sentinel-2 MSI data offer a good potential tool for characterizing and understanding LULC changes occurring in the disaster-affected area. We'll seek assistance from central government after assessment is done by our officials in the affected areas, ANI quoted Tamil Nadu CM E Palaniswami as saying. Comparing, two NDVI statistics shows the notably change in low vegetation area by 53 percentage from pre-cyclone to post-cyclone. Forecast Track Map (QLD) issued at 1256 UTC Saturday 30 January 2021 Ocean Wind Warning issued at 1250 UTC Saturday 30 January 2021; Tropical Cyclone Technical Bulletin issued at 1342 UTC Saturday 30 January 2021; Details for: Tropical Low 2 He heard the grievances of the people and offered them comfort and relief items. In the area affected by the Gaja cyclone, a farmer was crying and grieving, ‘I have lost everything’. The main change observed for the time period of pre and post-cyclone was the decrease of plantation crops due to Gaja cyclone from 17.4 to 6.8 %. Once the option of change detection classification is determined, decision on the data processing necessities can be made. Fig.6. Department of Space, and Govt of India. The most important changes have occurred in low and very high density classes. At first stage, the NDVI data layer was generated from sentinel-2 images in ENVI 5.3 environment. Then, a transition matrix was prepared for the over laid LULC maps of pre and post cyclone. In error matrix utility, the reference class values were compared with the classified class values in a cxc matrix, where c is the number of classes. Cyclone Gaja: Death toll reaches 45; Palaniswami to visit affected areas today The central government has been asked to depute a team from the National Disaster Management to assess the destruction. The three 60 m spatial resolution bands were not used in this study because they are primarily relevant for atmospheric corrections. Ministry of Railways has decided to extend free transportation of relief material to affected areas by 15 days from January 8 in solidarity with the people of Tamil Nadu affected by Cyclone 'Gaja'. The present study aims to assess the pre and post disaster changes to plantation crops in cyclone affected area in East coastal region of Tamilnadu and puducherry. He comforted the … 237-254. 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