Cloud Detection with MODIS. Part II: Validation

Journal of Atmospheric and Oceanic Technology;  July 1, 2008 ;     700+ words ......Resolution Imaging Spectroradiometer (MODIS) cloud mask algorithm for Terra and Aqua satellites is presented. The MODIS cloud mask algorithm output is compared...optical depth limitation of the MODIS cloud mask is approximately 0.4. While...

High-spatial-resolution surface and cloud-type classification from MODIS...

Journal of Applied Meteorology;  February 1, 2003 ;     700+ words ......been developed. The MODIS cloud mask is used to define the...refines the output of the cloud mask algorithm and enables...are compared with the MODIS cloud mask, visible images...Ackerman et al. 1998). The MODIS cloud mask relies on a variety...

Retrieval of Cloud Microphysical Properties from MODIS and AIRS

Journal of Applied Meteorology;  October 1, 2005 ;     700+ words ......high-spatial-resolution (1-5 km) cloud mask, cloud classification mask...addition, the collocated 1-km MODIS cloud mask refines the AIRS cloud...either the operational MODIS cloud products or MR cloud property...Imaging Spectroradiometer (MODIS) and ...

A Cloud Fraction versus View Angle Technique for Automatic In-Scene...

Journal of Applied Meteorology;  June 1, 2004 ;     700+ words ......of MISR is the radiometric camera-by-camera cloud mask (RCCM), which provides a cloud mask for each of the nine MISR cameras. Validation...cirrus or a thick haze. 1. Introduction A cloud mask classifies satellite instantaneous fields...

Real-Time, High-Resolution, Space-Time Analysis of Sea Surface...

Monthly Weather Review;  September 1, 2007 ;     700+ words ......designed to test the impact of the GOES composites, MODIS cloud mask, spatially varying background error covariance and...anisotropy. For the May 2004 period, the nighttime MODIS cloud mask is too conservative, at times removing good SST data...

Distinguishing Aerosols from Clouds in Global, Multispectral Satellite...

Journal of Atmospheric and Oceanic Technology;  April 1, 2008 ;     700+ words ......heavy aerosols with automated cloud classification algorithms developed...Imager/Radiometer Suite (VIIRS) cloud mask algorithm that in reality contains...information available from the VIIRS cloud mask algorithm in addition to cloud...and heavy aerosols in a single cloud ...

Hydrometeor Detection Using Cloudsat-An Earth-Orbiting 94-GHz Cloud Radar

Journal of Atmospheric and Oceanic Technology;  April 1, 2008 ;     700+ words ......Cloudsat project routinely generates a "cloud mask" (described in section 2) that indicates...with a sensitivity of about -30 dBZ.1 2. Cloud mask and detection algorithm a. Description...result of the operational algorithm is a "cloud mask" that is stored in the Cloudsat ...

Verification of an MSG Image Forecast Model: METCAST

Weather and Forecasting;  August 1, 2008 ;     700+ words ......Hanssen and Kuiper (HK) discriminant for a cloud mask selected in the modified and forecast...METCAST gives valuable information about cloud mask evolution and it is a tool for forecasters...methodologies in order to validate the cloud mask advection and pixel gray-level forecasts...

NWCSAF AVHRR Cloud Detection and Analysis Using Dynamic Thresholds and...

Journal of Applied Meteorology;  January 1, 2005 ;     700+ words ...ABSTRACT Algorithms for cloud detection (cloud mask) and classification (cloud type) at high...the consistency of the cloud type. The cloud mask performs best over daytime sea and worst...Very High Resolution Radiometer (AVHRR) cloud-mask and cloud-type algorithms for mid- and...

A Bayesian cloud mask for sea surface temperature retrieval

Journal of Atmospheric and Oceanic Technology;  January 1, 1999 ;     700+ words ...ABSTRACT Bayesian methods are used to develop a cloud mask classification algorithm for use in an operational sea...algorithms, they are of little advantage during daytime hours. Cloud mask discriminant models having similar high Kuipers, performance...

Remote Sensing of Liquid Water and Ice Cloud Optical Thickness and...

Journal of Atmospheric and Oceanic Technology;  June 1, 2004 ;     700+ words ......as part of the First ISCCP (International Satellite Cloud Climatology Project) Regional Experiment (FIRE) Arctic...the Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) were used to derive a confidence in clear sky (or alternatively the probability of cloud) over five ...

The distribution of tropical thin cirrus clouds inferred from Terra MODIS...

Journal of Climate;  April 15, 2003 ;     700+ words ......one-third of the pixels flagged as cloud free by the MODIS cloud mask are shown to contain detectible thin cirrus. These...resolution calibrated radiances (MOD02) and the 1-km cloud mask and cirrus reflectance products from the cloud product...

Comparison of NOAA's Operational AVHRR-Derived Cloud Amount to Other...

Journal of Climate;  December 15, 2004 ;     700+ words ......detection scheme in the extended Clouds from AVHRR (CLAVR-x) system. The cloud mask within CLAVR-x is a replacement for the Clouds from AVHRR phase 1 (CLAVR-1) cloud mask. Previous analysis of the CLAVR-1 cloud climatologies reveals that its...

MODIS Global Cloud-Top Pressure and Amount Estimation: Algorithm...

Journal of Applied Meteorology and Climatology;  April 1, 2008 ;     700+ words ......Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Earth Observing System (EOS) Terra...measurements for deriving global and regional cloud properties. MODIS has spectral coverage combined...for daily, 8-day, and monthly time periods. The MODIS cloud algorithm produces ...

Daytime Multilayered Cloud Detection Using Multispectral Imager Data

Journal of Atmospheric and Oceanic Technology;  August 1, 2004 ;     700+ words ......information used by the algorithm includes the operational MODIS cloud mask and cloud thermodynamic phase as inferred from the...spatial resolution) as follows. First, the operational MODIS cloud mask provides information regarding clear and cloudy pixels...