World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Temporal Co-registration for Tropomi Cloud Clearing : Volume 4, Issue 5 (07/10/2011)

By Genkova, I.

Click here to view

Book Id: WPLBN0003984493
Format Type: PDF Article :
File Size: Pages 24
Reproduction Date: 2015

Title: Temporal Co-registration for Tropomi Cloud Clearing : Volume 4, Issue 5 (07/10/2011)  
Author: Genkova, I.
Volume: Vol. 4, Issue 5
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Roebeling, R., Robaidek, J., Sneep, M., Genkova, I., & Veefkind, P. (2011). Temporal Co-registration for Tropomi Cloud Clearing : Volume 4, Issue 5 (07/10/2011). Retrieved from http://www.worldebookfair.com/


Description
Description: KNMI – Royal Netherlands Meteorological Institute, De Bilt, The Netherlands. The TROPOspheric Monitoring Instrument (TROPOMI) is planed for launch in 2014 on board of the Sentinel 5 Precursor (S5P) and is anticipated to provide high-quality and timely information on the global atmospheric composition for climate and air quality applications. TROPOMI will observe key atmospheric constituents such as ozone, nitrogen dioxide, sulfur dioxide, carbon monoxide, methane, formaldehyde and aerosol properties. The retrieval algorithms for the anticipated products require cloud information on a pixel basis. Most of them will use the cloud properties derived from TROPOMI's own measurements, such as the O2 A-band measurements. However, the methane and the aerosol retrievals require very precise cloud clearing, which is difficult to achieve at the TROPOMI spatial resolution (7 × 7 km2) and without thermal IR measurements. The current payload of the Sentinel 5 Precursor (S-5P) does not include a cloud imager, thus it is planned to fly the S5P mission in a constellation with another instrument yielding an accurate cloud mask. The cloud imagery data will be provided by the US NPOESS Preparatory Project (NPP) mission which will have the Visible Infrared Imager Radiometer Suite (VIIRS) on board (Scalione, 2004). VIIRS will have 22 bands in the VIS and IR spectral ranges, and will deliver data with two spatial resolutions: imagery resolution bands with a nominal pixel size of 370 m at nadir, and moderate resolution bands with nominal pixel size 740 m at nadir. The instrument is combining fine spatial resolution with high-accuracy calibration similar or superior to AVHRR.

This paper presents results from investigating the temporal co-registration requirements for suitable time differences between the VIIRS measurements of clouds and the TROPOMI methane and aerosol measurements, so that the former could be used for cloud clearing. The temporal co-registration is studied using Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) data with 15 min temporal resolution (Veefkind, 2008a), and with data from the Geostationary Operational Environmental Satellite-10 (GOES-10) having 1 min temporal resolution. The aim is to understand and assess the relation between the amount of allowed cloud contamination and the required time difference between the two satellites' overflights. Quantitative analysis shows that a time difference of approximately 5 min is sufficient (in most conditions) to use the cloud information from the first instrument for cloud clearing in the retrievals using data from the second instrument. In recent years the A-train constellation demonstrated the benefit of flying satellites in formation. Therefore this study's findings will be useful and applicable for designing future Low Earth Orbit (LEO) satellite constellations.


Summary
Temporal co-registration for TROPOMI cloud clearing

Excerpt
Clothiaux, E., Ackerman, T. P., Mace, J., Moran, K., Marchand, R., Miller, M., and Martner, B.: Objective Determination of Cloud Heights and Radar Reflectivities Using a Combination of Active Remote Sensors at the ARM CART Sites, J. Appl. Meteorol., 39, 645–665, 2000.; Genkova, I., Seiz, G., Zuidema, P., Zhao, G., and Di Girolamo, L.: Cloud Top Height Comparisons from ASTER, MISR, and MODIS for Trade Wind Cumuli, Remote Sens. Environ., 107, 211–222, 2007.; Jedlovec, G. J., Haines, S. L., and LaFontaine, F. J.: Spatial and Temporal Varying Thresholds for Cloud Detection in GOES Satellite Imagery, IEEE T. Geosci. Remote, 46, 1705–1717, 2008.; Krijger, J. M., van Weele, M., Aben, I., and Frey, R.: Technical Note: The effect of sensor resolution on the number of cloud-free observations from space, Atmos. Chem. Phys., 7, 2881–2891, doi:10.5194/acp-7-2881-2007, 2007.; NASA Goddard Space Flight Center, Formation Flying: The Afternoon A-Train Satellite Constellation, Article FS-2003-1-053-GSFC, 2003.; Long, C. N. and Ackerman, T. P.: Identification of Clear Skies from Broadband Pyranometer Measurements and Calculation of Downwelling Shortwave Cloud Effects, J. Geophys. Res., 105, 15609–15626, 2000. \clearpage; Menzel, W. P., Frey, R., Zhang, H., Wylie, D., Moeller, C., Holz, R., Maddux, B., Baum, B., Strabala, K., and Gumley, L.: MODIS global cloud-top pressure and amount estimation: Algorithm description and results, J. Appl. Meteorol. Clim., 47, 1175–1198, 2008.; Roebeling, R. A., Feijt, A. J., and Stammes, P.: Cloud property retrievals for climate monitoring: Implications of differences between Spinning Enhanced Visible and Infrared Imager (SEVIRI) on METEOSAT-8 and Advanced Very High Resolution Radiometer (AVHRR) on NOAA-17, J. Geophys. Res., 111, D20210, doi:10.1029/2005JD006990, 2006.; Scalione, T., Swenson, H. W., De Luccia, F., Schueler, C., Clement, J. E., and Darnton, L.: Post-CDR NPOESS VIIRS sensor design and performance, Proc. SPIE Int. Soc. Opt. Eng., 5234, 144–155, 2004.; Veefkind, J. P.: Orbit possibilities for the Sentinel 5 Precursor, CAMELOT Tech. Note TN-CAM-KNMI-019, 2008a.; Veefkind, J. P.: Temporal Co-registration for Cloud Clearing Tech. Note TN-CAM-KNMI-036, 2008b.; Zhao, G. and Di Girolamo, L.: Statistics on the macrophysical properties of trade wind cumuli over the tropical western Atlantic, J. Geophys. Res., 112, L20814, doi:10.1029/2006JD007371, 2007.

 

Click To View

Additional Books


  • High-resolution Chemical Ionization Mass... (by )
  • Geophysical Validation and Long-term Con... (by )
  • A Method for Real-time Profiling of Orga... (by )
  • An Improved Method for Retrieving Nightt... (by )
  • Detection of Convective Initiation Using... (by )
  • A Rapid Method to Derive Horizontal Dist... (by )
  • Light Scattering at Small Angles by Atmo... (by )
  • Greenhouse Gas Observations from Cabauw ... (by )
  • A Combustion Setup to Precisely Referenc... (by )
  • Application of Ground-based Hyperspectra... (by )
  • On the Efficient Treatment of Temperatur... (by )
  • Six Years of Mesospheric Co Estimated fr... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.