The Potential Use of SARAL ALTIKA Towards Coastal Regions - A Case Study on East Coast of India
Journal Title: Modern Approaches in Oceanography and Petrochemical Sciences - Year 2018, Vol 1, Issue 4
Abstract
Altimeter data provides a precise measurement of wave parameters especially over open ocean. Now, several attempts were made to retrieve wind and wave information towards coastal regions. SARAL/Altika is a first of its kind to operate at such a high frequency to provide better observation of coastal regions. The present study is especially important for the Indian coasts because most of the in-situ observations are either coastally located or at deep water. But there is no sufficient information on data available at intermediate waters, which is very important to addresses several coastal problems. In this paper, an attempt to observe retrieve and validate SARAL along track wave data at different coastal regions along the east coast of India. SARAL validation is carried out at the point closest to the buoy and at all the points along the track close to the coast. The narrow foot print size enables.com to get valid data as close as three km proximity to the coast. SARAL Significant wave height (SWH) estimates are well correlated with the coastal buoy measurements and improves observation of wave height estimates close to the coast. This helps.com to understand transformation of wave from deep water to shallow water. An important advantage of SARAL is better estimation of low wave heights, which is particularly important for the coastal regions along east coast of India especially during non-monsoon periods particularly during the months of January and February. Another important observation from the study was the orientation of the coast and altimeter flight path will also have an effect on altimeter measurement of wave heights particularly over the coastal regions. The seasonal distribution of mean wave climate data prepared from SARAL Altika with a time span of 3 years (April 2013 to March 2016) with one fourth degree resolution. The distribution of significant wave height over west Bay of Bengal displays a seasonal behavior and the impact of monsoon winds. It also displays a zonal character.
Authors and Affiliations
Acharyulu PSN, Prasad KVSR, Vignudelli Stefano, Rashmi Sharma
Keywords
Related Articles
- EP ID EP623696
- DOI 10.32474/MAOPS.2018.01.000120
- Views 101
- Downloads 0
Along Track Interferometry TANDEM-X Satellite Data for Modelling Sea Surface Pattern Variations
This investigation is the novel study, which is contacted along the Malaysian coastal water to implement the potential of TanDEM-X satellite data for retrieving sea surface current. In this view, the main objective of th...
Untold story of Deccan Traps: Role of silicate Liquid Immiscibility
Role of liquid immiscibility has immense importance in petro genesis of basaltic magmas. Roedder, Weiblen [1,2] postulated that high silica and high iron glasses of the lunar basaltic rocks have widespread petro genetic...
Blue Economy in Bangladesh: Next Resources Exist
Blue economy is the basis of a sustainable development of the ocean-based country like Bangladesh. Sustainable development is the development that meets the needs of the present without compromising the ability of future...
The Study of the Unusual Development of the Super Tropical Storms Surrounding Indonesia Maritime Continent Area In March 2018
Based on the operational notes in relation with the tropical cyclones or storms development over Indonesia Maritime Continent area, it can be stated that surrounding the area to be easily developed with the highest frequ...
Temporal and Spatial Variability of Global Upper Ocean Freshwater Content
Observational salinity data from the Global Temperature and Salinity Profile Program (GTSPP) are used to identify temporal and spatial variability of the upper ocean freshwater content (FWC). First, the optimal spectral...