Surface Turbulent Fluxes, 1x1 deg Monthly Climatology, Set1 and NCEP
Entry ID:
GES_DISC_GSSTFMC_2c
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Summary
Abstract:
These data are the Goddard Satellite-based Surface Turbulent Fluxes Version-2c Dataset recently produced through a MEaSURES funded project led by Dr. Chung-Lin Shie (UMBC/GEST, NASA/GSFC), converted to HDF-EOS5 format. The stewardship of this HDF-EOS5 dataset is part of the MEaSUREs project, ... http://earthdata.nasa.gov/our-community/community-data-system-progr...
http://earthdata.nasa.gov/our-community/community-data-system-progr...
GSSTF version 2b (Shie et al. 2010, Shie et al. 2009) generally agreed better with available ship measurements obtained from several field experiments in 1999 than GSSTF2 (Chou et al. 2003) did in all three flux components, i.e., latent heat flux [LHF], sensible heat flux [SHF], and wind stress [WST] (Shie 2010a,b). GSSTF2b was also found favorable, particularly for LHF and SHF, in an intercomparison study that accessed eleven products of ocean surface turbulent fluxes, in which GSSTF2 and GSSTF2b were also included (Brunke et al. 2011). However, a temporal trend appeared in the globally averaged LHF of GSSTF2b, particularly post year 2000. Shie (2010a,b) attributed the LHF trend to the trends originally found in the globally averaged SSM/I Tb's, i.e., Tb(19v), Tb(19h), Tb(22v) and Tb(37v), which were used to retrieve the GSSTF2b bottom-layer (the lowest atmospheric 500 meter layer) precipitable water [WB], then the surface specific humidity [Qa], and subsequently LHF. The SSM/I Tb's trends were recently found mainly due to the variations/trends of Earth incidence angle (EIA) in the SSM/I satellites (Hilburn and Shie 2011a,b). They have further developed an algorithm properly resolving the EIA problem and successfully reproducing the corrected Tb's by genuinely removing the "artifactitious" trends. An upgraded production of GSSTF2c (Shie et al. 2011) using the corrected Tb's has been completed very recently.
GSSTF2c shows a significant improvement in the resultant WB, and subsequently the retrieved LHF - the temporal trends of WB and LHF are greatly reduced after the proper adjustments/treatments in the SSM/I Tb's (Shie and Hilburn 2011). In closing, we believe that the insightful "Rice Cooker Theory" by Shie (2010a,b), i.e., "To produce a good and trustworthy 'output product' (delicious 'cooked rice') depends not only on a well-functioned 'model/algorithm' ('rice cooker'), but also on a genuine and reliable 'input data' ('raw rice') with good quality" should help us better comprehend the impact of the improved Tb on the subsequently retrieved LHF of GSSTF2c.
This is the Monthly Climatology product; data are projected to equidistant Grid that covers the globe at 1x1 degree cell size, resulting in data arrays of 360x180 size. Starting with Version 2c, there is only one set of Combined data, "Set1". The Monthly Climatology HDF-EOS5 file also contains one extra grid of NCEP Climatology, "NCEP".
SET1 contains 9 variables:
"E" 'latent heat flux' (W/m**2),
"STu" 'zonal wind stress' (N/m**2),
"STv" 'meridional wind stress' (N/m**2),
"H" 'sensible heat flux' (W/m**2),
"Qair" 'surface air (~10-m) specific humidity' (g/kg),
"WB" 'lowest 500-m precipitable water' (g/cm**2),
"U" '10-m wind speed' (m/s),
"DQ" 'sea-air humidity difference' (g/kg)
"Tot_Precip_Water" 'total precipitable water' (g/cm**2)
The NCEP grid contains 4 variables:
"SST" 'sea surface skin temperature' (C)
"Psea_level" 'sea level pressure' (hPa)
"Tair_2m" '2m air temperature' (C)
"Qsat" 'sea surface saturation humidity' (g/kg)
The double-quoted labels are the short names of the data fields in the HDF-EOS5 files.
The monthly temporal and one-degree spatial resolution of the product can be used to examining climate variability at these scales. Oceanic evaporation contributes to the net fresh water input to the oceans and drives the upper ocean density structure and consequently the circulation of the oceans.
The short name for this product is GSSTFMC
Parameters contained in the data files include the following:
Variable Name|Description|Units
Psea_level|sea level pressure|(hPa)
Qsat|sea surface saturation humidity|(g/kg)
SST|sea surface skin temperature|(C)
Tair_2m|2m air temperature|(C)
DQ|sea-air humidity difference|(g/kg)
E|latent heat flux|(W/m^^2)
H|sensible heat flux|(W/m^^2)
Qair|surface air (~10-m) specific humidity|(g/kg)
STu|zonal wind stress|(N/m^^2)
STv|meridional wind stress|(N/m^^2)
Tot_Precip_Water|total precipitable water|(g/cm^^2)
U|10-m wind speed|(m/s)
WB|lowest 500-m precipitable water|(g/cm^^2)
End of parameter information 
Related URL
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Description:
Search, visualize, subset, and download data in HDF-EOS5
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 90.0
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S: -90.0
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E: 180.0
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W: -180.0
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Data Set Citation
Dataset Originator/Creator:
Shie, C.-L., K. Hilburn, L. S. Chiu, R. Adler, I-I Lin, E. Nelkin, and J. Ardizzone
Dataset Title:
Surface Turbulent Fluxes, 1x1 deg Monthly Climatology, Set1 and NCEP
Dataset Series Name:
GSSTFMC
Dataset Release Date:
November 18, 2011
Dataset Release Place:
Greenbelt, MD, USA
Dataset Publisher:
Goddard Earth Science Data and Information Services Center (GES DISC)
Version:
2c
Dataset Editor:
Andrey Savtchenko
Issue Identification:
GSSTFMC_2c
Data Presentation Form:
Digital Science Data
Other Citation Details:
http://disc.gsfc.nasa.gov/data/GES_DISC_GSSTFMC_2c.html
Online Resource:
http://disc.sci.gsfc.nasa.gov/daac-bin/DataHoldingsMEASURES.pl?PROG...
Temporal Coverage
Start Date:
1988-01-01
Stop Date:
2008-12-31
Data Resolution
Latitude Resolution:
1 degree
Longitude Resolution:
1 degree
Horizontal Resolution Range:
100 km - < 250 km or approximately 1 degree - < 2.5 degrees
Temporal Resolution:
monthly
Temporal Resolution Range:
Monthly Climatology
Quality
The global gridded product uses only good quality data.
Use Constraints
This Data set is not fully validated yet. Before using it in any trend analysis please contact algorithm team leads for the current known problems and updates.
Distribution
Distribution Media:
FTP
Distribution Size:
Approx 6 MB per file
Distribution Format:
HDF-EOS5
Fees:
None
Personnel
Role:
INVESTIGATOR
Phone:
301-614-5553
Fax:
301-614-5903
Email:
Nickolay.A.Krotkov at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 613.3
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Role:
INVESTIGATOR
City:
De Bilt
Province or State:
AE
Postal Code:
3730
Country:
NL
Role:
TECHNICAL CONTACT
Role:
DIF AUTHOR
Phone:
301-614-5284
Email:
Suraiya.Ahmad at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 610.2
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References
Ahmad, S. P., P. F. Levelt, P. K. Bhartia, E. Hilsenrath, G. W. Leppelmeier,and J. E. Johnson, "Atmospheric Products from the Ozone Monitoring Instrument(OMI)", Proceedings of SPIE conference on Earth Observing Systems VIII, San Diego,California, Aug 3-8, 2003. http://disc.sci.gsfc.nasa.gov/acdisc/ozone/docs/omi-spie-2003.doc Boersma, K. F., E. J. Bucsela, E. J. Brinksma, J. F. Gleason, NO2 in ... Algorithm Theoretical Baseline Document: OMI Trace Gas Algorithms, K. Chance
(ed.), vol. IV, ATBD-OMI-04, version 2.0, Aug. 2002.
http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/atbd/docs/OMI/
ATBD-OMI-04.pdf
Bucsela, E. J., Krotkov, N. A., Celarier, E. A., Lamsal, L. N., Swartz, W. H., Bhartia, P. K., Boersma, K. F., Veefkind, J. P., Gleason, J. F., and Pickering, K. E.: A new stratospheric and tropospheric NO2 retrieval algorithm for nadir-viewing satellite instruments: applications to OMI, Atmos. Meas. Tech. Discuss., 6, 1361-1407, doi:10.5194/amtd-6-1361-2013.
Bucsela, E., E. Celarier, M. Wenig, J. Gleason, P. Veefkind,
K.F. Boersma, E. Brinksma, Algorithm for NO2 vertical column
retrieval from the Ozone Monitoring Instrument, IEEE
Transactions on Geoscience and Remote Sensing, 44, 1245-1258,
2006.
Burrows, J.P., A. Richter, A. Dehn, B. Deters, S. Himmelmann,
S. Voigt, and J. Orphal, Atmospheric remote sensing reference
data from GOME - 2. Temperature-dependent absorption
cross-sections of O3 in the 231-794 nm range,
J. Quant. Spectrosc. Radiat. Transfer 61, 509-517, 1999.
Chance, K. V., and R. J. D. Spurr, Ring effect studies: Rayleigh
scattering, including molecular parameters for rotational Raman
scattering, and the Fraunhofer spectrum, Applied Optics, 36,
5224, 1997.
Palmer, P.I., D.J. Jacob, K. Chance, R.V. Martin, R.J.D. Spurr,
T.P. Kurosu, I. Bey, R. Yantosca, A. Fiore, Air mass factor
formulation for spectroscopic measurements from satellites:
Application to formaldehyde retrievals from the Global Ozone
Monitoring Experiment, J. Geophys. Res., 106, 14539, 2001.
Levelt, P.F., G.H.J. van den Oord, M.R. Dobber, A. Malkki, H. Visser, J. de
Vries, P. Stammes, J. Lundell and H. Saari, The Ozone Monitoring Instrument,
IEEE Trans. Geo. Rem. Sens., 2006, Vol. 44, No. 5, 1093-1101,
doi:10.1109/TGRS.2006.872333.
Levelt, P.F., E. Hilsenrath, G.W. Leppelmeier, G.H.J. van den Oord, P.K.
Bhartia, J. Tamminen, J.F. de Haan en J.P. Veefkind, Science Objectives of the
Ozone Monitoring Instrument, IEEE Trans. Geo. Rem. Sens., 2006, Vol. 44, No. 5,
1199-1208, doi:10.1109/TGRS.2006.872336.
Schoeberl, M.R., A.R. Douglass, E. Hilsenrath, P.K. Bhartia, R. Beer, J.W.
Waters, M.R. Gunson, L. Froidevaux, J.C. Gille, J.J. Barnett, P.F. Levelt and
P. DeCola, Overview of the EOS aura mission, IEEE Trans. Geo. Rem. Sens., 2006,
Vol. 44, No. 5, 1066-1074, doi:10.1109/TGRS.2005.861950.
Schoeberl, M.R., A.R. Douglass, E. Hilsenrath, P.K. Bhartia,
J. Barnett, J. Gille, R. Beer, M. Gunson, J. Waters,
P.F. Levelt,P. DeCola, "The EOS Aura Mission," EOS,
Transactions, American Geophysical Union 85 , Number 18, 4 May
2004. [Preprint]
http://aura.gsfc.nasa.gov/project/eos-agu-aura-article.pdf
Vandaele A.C., C. Hermans, P.C. Simon, M. Carleer, R. Colin,
S. Fally, M.F. M. Aerienne, A. Jenouvrier, and B. Coquart,
Measurements of the NO2 absorption cross-section from 42000 cm-1
to 10000 cm-1 (238-1000 nm) at 220 K and 294 K,
J. Quant. Spectrosc. Radiat. Transfer 59, 171-184, 1998
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date:
2009-11-24
Last DIF Revision Date:
2013-03-22
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