cldprop > Cloud Property Retrieval Products for Graciosa Island, AzoresData Source Type(s) > PI

The motivation for developing this product was to use the Dong et al. 1998 method to retrieve cloud microphysical properties, such as cloud droplet effective radius, cloud droplets number concentration, and optical thickness. These retrieved properties have been used to validate the satellite retrieval, and evaluate the climate simulations and reanalyses. We had been using this method to retrieve cloud microphysical properties over ARM SGP and NSA sites. We also modified the method for the AMF at Shouxian, China and some IOPs, e.g. ARM IOP at SGP in March, 2000. The ARSCL data from ARM data archive over the SGP and NSA have been used to determine the cloud boundary and cloud phase. For these ARM permanent sites, the ARSCL data was developed based on MMCR measurements, however, there were no data available at the Azores field campaign. We followed the steps to generate this derived product and also include the MPLCMASK cloud retrievals to determine the most accurate cloud boundaries, including the thin cirrus clouds that WACR may under-detect. We use these as input to retrieve the cloud microphysical properties. Due to the different temporal resolutions of the derived cloud boundary heights product and the cloud properties product, we submit them as two separate netcdf files.


Date were collected in order to do validation for satellite retrievals and evaluate climate models.

Data Details

Developed By Xiquan Dong
Contact Baike Xi
Resource(s) Data Directory
Data format netcdf
Content time range 5 June 2009 - 31 December 2010
Attribute accuracy No formal attribute accuracy tests were conducted
Positional accuracy No formal positional accuracy tests were conducted
Data Consistency and Completeness Data set is considered complete for the information presented, as described in the abstract.Users are advised to read the rest of the metadata record carefully for addtional details.
Access Restriction No access constraints are associated with this data.
Use Restriction No use constraints are associated with this data.
File naming convention average.5min.m1.yyyymmdd.cloudproperty.Dong.cdf
Citations Dong X., T.P. Ackerman, and E.E. Clothiaux, 1998: Parameterizations of Microphysical and Radiative Properties of Boundary Layer Stratus from Ground-based measurements . J. Geophys. Res . 102, 31,681-31,393.

Dong X. , and G.G. Mace, 2003: Profiles of Low-level Stratus Cloud Microphysics Deduced from Ground-based Measurements . J. Atmos and Oceanic Tech . 20 ,42-53.

Dong, X., B. Xi, A. Kennedy, P. Minnis and R. Wood, 2014: A 19-month Record of Marine Aerosol-Cloud-Radiation Properties derived from DOE ARM AMF deployment at the Azores: Part I: CloudFraction and Single-layered MBL cloud Properties. J. Clim., 27, 3665-3682. DOI: 10.1175/JCLI-D-13-00553.1


Zhang Z, X Dong, B Xi, H Song, P Ma, S Ghan, S Platnick, and P Minnis. 2017. "Inter-comparisons of marine boundary layer cloud properties from the ARM CAP-MBL campaign and two MODIS cloud products." Journal of Geophysical Research: Atmospheres, 122(4), 10.1002/2016JD025763.
Research Highlight


de Szoeke SP, KL Verlinden, SE Yuter, and DB Mechem. 2016. "The Time Scales of Variability of Marine Low Clouds." Journal of Climate, 29(18), 10.1175/jcli-d-15-0460.1.
Research Highlight


Wu P, X Dong, and B Xi. 2015. "Marine boundary layer drizzle properties and their impact on cloud property retrieval." Atmospheric Measurement Techniques, 8(9), 10.5194/amt-8-3555-2015.
Research Highlight

Dong X, A Schwantes, B Xi, and P Wu. 2015. "Investigation of the marine boundary layer cloud and CCN properties under coupled and decoupled conditions over the Azores." Journal of Geophysical Research: Atmospheres, 120(12), doi:10.1002/2014JD02, 10.1002/2014jd022939.
Research Highlight

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