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Author Morey, S.; Wienders, N.; Dukhovskoy, D.; Bourassa, M. url  doi
openurl 
  Title Measurement Characteristics of Near-Surface Currents from Ultra-Thin Drifters, Drogued Drifters, and HF Radar Type $loc['typeJournal Article']
  Year 2018 Publication Remote Sensing Abbreviated Journal Remote Sensing  
  Volume 10 Issue 10 Pages 1633  
  Keywords surface drifters; surface currents; HF Radar; STOKES DRIFT; SEA-SURFACE; WAVES; BREAKING; VALIDATION; TRANSPORT  
  Abstract Concurrent measurements by satellite tracked drifters of different hull and drogue configurations and coastal high-frequency radar reveal substantial differences in estimates of the near-surface velocity. These measurements are important for understanding and predicting material transport on the ocean surface as well as the vertical structure of the near-surface currents. These near-surface current observations were obtained during a field experiment in the northern Gulf of Mexico intended to test a new ultra-thin drifter design. During the experiment, thirty small cylindrical drifters with 5 cm height, twenty-eight similar drifters with 10 cm hull height, and fourteen drifters with 91 cm tall drogues centered at 100 cm depth were deployed within the footprint of coastal High-Frequency (HF) radar. Comparison of collocated velocity measurements reveals systematic differences in surface velocity estimates obtained from the different measurement techniques, as well as provides information on properties of the drifter behavior and near-surface shear. Results show that the HF radar velocity estimates had magnitudes significantly lower than the 5 cm and 10 cm drifter velocity of approximately 45% and 35%, respectively. The HF radar velocity magnitudes were similar to the drogued drifter velocity. Analysis of wave directional spectra measurements reveals that surface Stokes drift accounts for much of the velocity difference between the drogued drifters and the thin surface drifters except during times of wave breaking.  
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  ISSN 2072-4292 ISBN Medium  
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  Call Number COAPS @ rl18 @ Serial 985  
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Author Murty, V.S.N.; Subrahmanyam, B.; Gangadhara Rao, L.V.; Reddy, G.V. url  doi
openurl 
  Title Seasonal variation of sea surface temperature in the Bay of Bengal during 1992 as derived from NOAA-AVHRR SST data Type $loc['typeJournal Article']
  Year 1998 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing  
  Volume 19 Issue 12 Pages 2361-2372  
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  Series Volume Series Issue Edition  
  ISSN 0143-1161 ISBN Medium  
  Area Expedition Conference  
  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 739  
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Author Nyadjro, E.S.; Jensen, T.G.; Richman, J.G.; Shriver, J.F. url  doi
openurl 
  Title On the Relationship Between Wind, SST, and the Thermocline in the Seychelles-Chagos Thermocline Ridge Type $loc['typeJournal Article']
  Year 2017 Publication IEEE Geoscience and Remote Sensing Letters Abbreviated Journal IEEE Geosci. Remote Sensing Lett.  
  Volume 14 Issue 12 Pages 2315-2319  
  Keywords Altimetry; HYbrid Coordinate Ocean Model (HYCOM); Indian Ocean Dipole (IOD); ocean-atmosphere coupling; Rossby waves; sea surface temperature (SST); thermocline depth; winds  
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  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 465  
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Author Subrahmanyam, B.; Babu, V.R.; Murty, V.S.N.; Rao, L.V.G. url  doi
openurl 
  Title Surface circulation off Somalia and western equatorial Indian Ocean during summer monsoon of 1988 from Geosat altimeter data Type $loc['typeJournal Article']
  Year 1996 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing  
  Volume 17 Issue 4 Pages 761-770  
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  ISSN 0143-1161 ISBN Medium  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 713  
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Author Subrahmanyam, B.; Robinson, I.S.; Blundell, J.R.; Challenor, P.G. url  doi
openurl 
  Title Indian Ocean Rossby waves observed in TOPEX/POSEIDON altimeter data and in model simulations Type $loc['typeJournal Article']
  Year 2001 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing  
  Volume 22 Issue 1 Pages 141-167  
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  ISSN 0143-1161 ISBN Medium  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 510  
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Author Weissman, D.E.; Bourassa, M.A. url  doi
openurl 
  Title Measurements of the Effect of Rain-Induced Sea Surface Roughness on the QuikSCAT Scatterometer Radar Cross Section Type $loc['typeJournal Article']
  Year 2008 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing  
  Volume 46 Issue 10 Pages 2882-2894  
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  Series Volume Series Issue Edition  
  ISSN 0196-2892 ISBN Medium  
  Area Expedition Conference  
  Funding NASA, OVWST, NASA HQ Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 681  
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Author Weissman, D.E.; Bourassa, M.A. url  doi
openurl 
  Title The Influence of Rainfall on Scatterometer Backscatter Within Tropical Cyclone Environments-Implications on Parameterization of Sea-Surface Stress Type $loc['typeConference Article']
  Year 2011 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing  
  Volume 49 Issue 12 Pages 4805-4814  
  Keywords Meteorological radar; radar cross section; radar remote sensing; scatterometry  
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  Series Volume Series Issue Edition  
  ISSN 0196-2892 ISBN Medium  
  Area Expedition Conference  
  Funding NASA, OVWST Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 284  
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Author Weissman, D.E.; Bourassa, M.A.; O'Brien, J.J.; Tongue, J.S. url  doi
openurl 
  Title Calibrating the quikscat/seawinds radar for measuring rainrate over the oceans Type $loc['typeJournal Article']
  Year 2003 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing  
  Volume 41 Issue 12 Pages 2814-2820  
  Keywords Next Generation Weather Radar (NEXRAD); precipitation; radar reflectivity; scatterometer normalized radar cross section (NRCS); space-based radar; Tropical Rain Measuring Mission (TRMM)  
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  Series Volume Series Issue Edition  
  ISSN 0196-2892 ISBN Medium  
  Area Expedition Conference  
  Funding NASA Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 468  
Permanent link to this record
 

 
Author Zou, M.; Xiong, X.; Wu, Z.; Li, S.; Zhang, Y.; Chen, L. url  doi
openurl 
  Title Increase of Atmospheric Methane Observed from Space-Borne and Ground-Based Measurements Type $loc['typeJournal Article']
  Year 2019 Publication Remote Sensing Abbreviated Journal Remote Sensing  
  Volume 11 Issue 8 Pages  
  Keywords Methane increase trend; Boundary layer; Mid-upper troposphere; Satellite; AIRS  
  Abstract It has been found that the concentration of atmospheric methane (CH4) has rapidly increased since 2007 after a decade of nearly constant concentration in the atmosphere. As an important greenhouse gas, such an increase could enhance the threat of global warming. To better quantify this increasing trend, a novel statistic method, i.e. the Ensemble Empirical Mode Decomposition (EEMD) method, was used to analyze the CH4 trends from three different measurements: the mid-upper tropospheric CH4 (MUT) from the space-borne measurements by the Atmospheric Infrared Sounder (AIRS), the CH4 in the marine boundary layer (MBL) from NOAA ground-based in-situ measurements, and the column-averaged CH4 in the atmosphere (X-CH4) from the ground-based up-looking Fourier Transform Spectrometers at Total Carbon Column Observing Network (TCCON) and the Network for the Detection of Atmospheric Composition Change (NDACC). Comparison of the CH4 trends in the mid-upper troposphere, lower troposphere, and the column average from these three data sets shows that, overall, these trends agree well in capturing the abrupt CH4 increase in 2007 (the first peak) and an even faster increase after 2013 (the second peak) over the globe. The increased rates of CH4 in the MUT, as observed by AIRS, are overall smaller than CH4 in MBL and the column-average CH4. During 2009-2011, there was a dip in the increase rate for CH4 in MBL, and the MUT-CH4 increase rate was almost negligible in the mid-high latitude regions. The increase of the column-average CH4 also reached the minimum during 2009-2011 accordingly, suggesting that the trends of CH4 are not only impacted by the surface emission, however that they also may be impacted by other processes like transport and chemical reaction loss associated with [OH]. One advantage of the EEMD analysis is to derive the monthly rate and the results show that the frequency of the variability of CH4 increase rates in the mid-high northern latitude regions is larger than those in the tropics and southern hemisphere.  
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  Series Volume Series Issue Edition  
  ISSN 2072-4292 ISBN Medium  
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  Funding Approved $loc['no']  
  Call Number COAPS @ user @ Serial 1055  
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