This study carried out to check the variations of Sea Level Pressure (SLP) during the cyclone conditions. SLP fields are estimated using University of Washington Planetary Boundary Layer model during Phailin, Lehar and Madi, three vary severe cyclonic storms which occurred in 2013 over Bay of Bengal region. Model performance in estimating SLP variations during cyclonic periods was investigated by comparison against cyclone reports of Indian Meteorological Department and in-situ observations.
This study carried out to check the variations of Sea Level Pressure (SLP) during the cyclone...
Review status: this discussion paper is a preprint. It has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). The manuscript was not accepted for further review after discussion.
Cyclonic intensity study using sea level pressure estimations from Ocensat-II scatterometer winds over Bay of Bengal during 2013
C. Purna Chand1,M. Venkateswara Rao1,K. V. S. R . Prasad2,and K. H. Rao1C. Purna Chand et al.C. Purna Chand1,M. Venkateswara Rao1,K. V. S. R . Prasad2,and K. H. Rao1
Received: 07 Feb 2017 – Accepted for review: 02 Jun 2017 – Discussion started: 07 Jun 2017
Abstract. Sea level pressure (SLP) fields prevailing over Bay of Bengal (BoB) during Phailin, Lehar and Madi cyclones (2013) were estimated using University of Washington Planetary Boundary Layer (UWPBL) model with Oceansat-II Scatterometer (OSCAT) sea surface winds as an input parameter. Model performance in estimating SLP variations during cyclonic periods was investigated by comparison against cyclone reports of Indian Meteorological Department (IMD) and in-situ measurements. Pressure drop as per IMD reports were observed to be higher than model estimates, primarily due to limitations in scatterometer wind data. However, model retrieved pressure fields compare well against buoy measurements, with a bias of 0.0042, −0.1279 and −0.4406 observed for Phailin, Lehar and Madi cyclones respectively. The contrast in pressure drops between model estimates and IMD reports was investigated by comparing scatterometer winds against IMD reported maximum sustainable winds.
Total article views: 618 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
429
162
27
618
35
36
HTML: 429
PDF: 162
XML: 27
Total: 618
BibTeX: 35
EndNote: 36
Views and downloads (calculated since 07 Jun 2017)
Cumulative views and downloads
(calculated since 07 Jun 2017)
Viewed (geographical distribution)
Total article views: 600 (including HTML, PDF, and XML)
Thereof 593 with geography defined
and 7 with unknown origin.
Country
#
Views
%
Total:
0
HTML:
0
PDF:
0
XML:
0
1
1
Latest update: 22 Jan 2021
Search articles
Download
Short summary
This study carried out to check the variations of Sea Level Pressure (SLP) during the cyclone conditions. SLP fields are estimated using University of Washington Planetary Boundary Layer model during Phailin, Lehar and Madi, three vary severe cyclonic storms which occurred in 2013 over Bay of Bengal region. Model performance in estimating SLP variations during cyclonic periods was investigated by comparison against cyclone reports of Indian Meteorological Department and in-situ observations.
This study carried out to check the variations of Sea Level Pressure (SLP) during the cyclone...