Records
Links
Author
Ahern, K. ; Bourassa, M.A. ; Hart, R.E. ; Zhang, J.A. ; Rogers, R.F.
Title
Observed Kinematic and Thermodynamic Structure in the Hurricane Boundary Layer During Intensity Change
Type
$loc['typeJournal Article']
Year
2019
Publication
Monthly Weather Review
Abbreviated Journal
Mon. Wea. Rev.
Volume
Issue
Pages
Keywords
Abstract
The axisymmetric structure of the inner-core hurricane boundary layer (BL) during intensification [IN; intensity tendency ≥ 20 kt (24 h)−1], weakening [WE; intensity tendency < −10 kt (24 h)−1], and steady-state [SS; the remainder] periods are analyzed using composites of GPS dropwindsondes from reconnaissance missions between 1998 and 2015. A total of 3,091 dropsondes were composited for analysis below 2.5 km elevation—1,086 during IN, 1,042 during WE, and 963 during SS. In non-intensifying hurricanes, the lowlevel tangential wind is greater outside the radius of maximum wind (RMW) than for intensifying hurricanes, implying higher inertial stability (I) at those radii for non-intensifying hurricanes. Differences in tangential wind structure (and I) between the groups also imply differences in secondary circulation. The IN radial inflow layer is of nearly equal or greater thickness than nonintensifying groups, and all groups show an inflow maximum just outside the RMW. Non-intensifying hurricanes have stronger inflow outside the eyewall region, likely associated with frictionally forced ascent out of the BL and enhanced subsidence into the BL at radii outside the RMW. Equivalent potential temperatures (θe) and conditional stability are highest inside the RMW of non-intensifying storms, which is potentially related to TC intensity. At greater radii, inflow layer θe is lowest in WE hurricanes, suggesting greater subsidence or more convective downdrafts at those radii compared to IN and SS hurricanes. Comparisons of prior observational and theoretical studies are highlighted, especially those relating BL structure to large-scale vortex structure, convection, and intensity.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0027-0644
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ user @
Serial
1031
Permanent link to this record
Author
Ali, M.M. ; Bhat, G.S. ; Long, D.G. ; Bharadwaj, S. ; Bourassa, M.A.
Title
Estimating Wind Stress at the Ocean Surface From Scatterometer Observations
Type
$loc['typeJournal Article']
Year
2013
Publication
IEEE Geoscience and Remote Sensing Letters
Abbreviated Journal
IEEE Geosci. Remote Sensing Lett.
Volume
10
Issue
5
Pages
1129-1132
Keywords
Atmospheric stability ; neutral stability ; scatterometer ; wind stress
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1545-598X
ISBN
Medium
Area
Expedition
Conference
Funding
NASA, OVWST
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
184
Permanent link to this record
Author
Ali, M.M. ; Bhowmick, S.A. ; Sharma, R. ; Chaudhury, A. ; Pezzullo, J.C. ; Bourassa, M.A. ; Ramana, I.V. ; Niharika, K.
Title
An Artificial Neural Network Model Function (AMF) for SARAL-Altika Winds
Type
$loc['typeJournal Article']
Year
2015
Publication
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Abbreviated Journal
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing
Volume
8
Issue
11
Pages
5317-5323
Keywords
AltiKa ; artificial neural network (ANN) ; geophysical data records ; wind speed
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1939-1404
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
118
Permanent link to this record
Author
Ali, M.M. ; Bourassa, M.A. ; Bhowmick, S.A. ; Sharma, R. ; Niharika, K.
Title
Retrieval of Wind Stress at the Ocean Surface From AltiKa Measurements
Type
$loc['typeJournal Article']
Year
2016
Publication
IEEE Geoscience and Remote Sensing Letters
Abbreviated Journal
IEEE Geosci. Remote Sensing Lett.
Volume
13
Issue
6
Pages
821-825
Keywords
AltiKa ; artificial neural networks (ANNs) ; wind stress
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1545-598X
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
29
Permanent link to this record
Author
Ali, M.M. ; Nagamani, P.V. ; Sharma, N. ; Venu Gopal, R.T. ; Rajeevan, M. ; Goni, G.J. ; Bourassa, M.A.
Title
Relationship between ocean mean temperatures and Indian summer monsoon rainfall
Type
$loc['typeJournal Article']
Year
2015
Publication
Atmospheric Science Letters
Abbreviated Journal
Atmos. Sci. Lett.
Volume
16
Issue
3
Pages
408-413
Keywords
ocean mean temperature ; Indian summer monsoon rainfall ; remote sensing ; sea surface height anomaly
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1530261X
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
94
Permanent link to this record
Author
Arguez, A. ; Bourassa, M.A. ; O'Brien, J.J.
Title
Detection of the MJO Signal from QuikSCAT
Type
$loc['typeJournal Article']
Year
2005
Publication
Journal of Atmospheric and Oceanic Technology
Abbreviated Journal
J. Atmos. Oceanic Technol.
Volume
22
Issue
12
Pages
1885-1894
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0739-0572
ISBN
Medium
Area
Expedition
Conference
Funding
NASA, NOAA, NSF
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
445
Permanent link to this record
Author
Armstrong, E.M. ; Bourassa, M.A. ; Cram, T.A. ; DeBellis, M. ; Elya, J. ; Greguska III, F.R. ; Huang, T. ; Jacob, J.C. ; Ji, Z. ; Jiang, Y. ; Li, Y. ; Quach, N. ; McGibbney, L. ; Smith, S. ; Tsontos, V.M. ; Wilson, B. ; Worley, S.J. ; Yang, C. ; Yam, E.
Title
An Integrated Data Analytics Platform
Type
$loc['typeJournal Article']
Year
2019
Publication
Frontiers in Marine Science
Abbreviated Journal
Front. Mar. Sci.
Volume
6
Issue
Pages
354
Keywords
Abstract
An Integrated Science Data Analytics Platform is an environment that enables the confluence of resources for scientific investigation. It harmonizes data, tools and computational resources to enable the research community to focus on the investigation rather than spending time on security, data preparation, management, etc. OceanWorks is a NASA technology integration project to establish a cloud-based Integrated Ocean Science Data Analytics Platform for big ocean science at NASA’s Physical Oceanography Distributed Active Archive Center (PO.DAAC) for big ocean science. It focuses on advancement and maturity by bringing together several NASA open-source, big data projects for parallel analytics, anomaly detection, in situ to satellite data matchup, quality-screened data subsetting, search relevancy, and data discovery. Our communities are relying on data available through distributed data centers to conduct their research. In typical investigations, scientists would (1) search for data, (2) evaluate the relevance of that data, (3) download it, and (4) then apply algorithms to identify trends, anomalies, or other attributes of the data. Such a workflow cannot scale if the research involves a massive amount of data or multi-variate measurements. With the upcoming NASA Surface Water and Ocean Topography (SWOT) mission expected to produce over 20PB of observational data during its 3-year nominal mission, the volume of data will challenge all existing Earth Science data archival, distribution and analysis paradigms. This paper discusses how OceanWorks enhances the analysis of physical ocean data where the computation is done on an elastic cloud platform next to the archive to deliver fast, web-accessible services for working with oceanographic measurements.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
2296-7745
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ user @
Serial
1042
Permanent link to this record
Author
Bourassa, M.A.
Title
An improved sea state dependency for surface stress derived from in situ and remotely sensed winds
Type
$loc['typeJournal Article']
Year
2004
Publication
Advances in Space Research
Abbreviated Journal
Advances in Space Research
Volume
33
Issue
7
Pages
1136-1142
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0273-1177
ISBN
Medium
Area
Expedition
Conference
Funding
NASA, NOAA, NSF, FYAP, ONR, OVWST
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
463
Permanent link to this record
Author
Bourassa, M.A., and P.J. Hughes
Title
Surface Heat Fluxes and Wind Remote Sensing
Type
$loc['typeBook Chapter']
Year
2018
Publication
Abbreviated Journal
Volume
Issue
Pages
245-270
Keywords
HEAT ; OCEAN SURFACE ; WINDS ; SCATTEROMETERS ; FLUXE ; STRESS ; RESPONSES
Abstract
The exchange of heat and momentum through the air-sea surface are critical aspects of ocean forcing and ocean modeling. Over most of the global oceans, there are few in situ observations that can be used to estimate these fluxes. This chapter provides background on the calculation and application of air-sea fluxes, as well as the use of remote sensing to calculate these fluxes. Wind variability makes a large contribution to variability in surface fluxes, and the remote sensing of winds is relatively mature compared to the air sea differences in temperature and humidity, which are the other key variables. Therefore, the remote sensing of wind is presented in greater detail. These details enable the reader to understand how the improper use of satellite winds can result in regional and seasonal biases in fluxes, and how to calculate fluxes in a manner that removes these biases. Examples are given of high-resolution applications of fluxes, which are used to indicate the strengths and weakness of satellite-based calculations of ocean surface fluxes.
Address
Corporate Author
Thesis
Publisher
GODAE OceanView
Place of Publication
Tallahassee, FL
Editor
Chassignet, E. P., A. Pascual, J. Tintoré, and J. Verron
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ user @
Serial
947
Permanent link to this record
Author
Bourassa, M.A. ; Freilich, M.H. ; Legler, D.M. ; Liu, W.T. ; O'Brien, J.J.
Title
Wind observations from new satellite and research vessels agree
Type
$loc['typeJournal']
Year
1997
Publication
Eos, Transactions American Geophysical Union
Abbreviated Journal
Eos Trans. AGU
Volume
78
Issue
51
Pages
597
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0096-3941
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
726
Permanent link to this record