English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A research-level retrieval algorithm for cloud optical and microphysicalproperties is developed for the Advanced Spaceborne Thermal Emission andReflection Radiometer (ASTER) aboard the Terra satellite. It is based on theoperational MODIS algorithm. This paper documents the technical details ofthis algorithm and evaluates the retrievals for selected marine boundarylayer cloud scenes through comparisons with the operational MODIS DataCollection 6 (C6) cloud product. The newly developed, ASTER-specific cloudmasking algorithm is evaluated through comparison with an independentalgorithm reported in [Zhao and Di Girolamo(2006)]. To validate andevaluate the cloud optical thickness (τ) and cloud effective radius(reff) from ASTER, the high-spatial-resolution ASTER observationsare first aggregated to the same 1000 m resolution as MODIS. Subsequently,τaA and reff, <mspace linebreak="nobreak" width="0.25em"/>aA retrieved from the aggregatedASTER radiances are compared with the collocated MODIS retrievals. Forovercast pixels, the two data sets agree very well with Pearson'sproduct-moment correlation coefficients of R > 0.970. However, forpartially cloudy pixels there are significant differences betweenreff, <mspace linebreak="nobreak" width="0.25em"/>aA and the MODIS results which can exceed10 µm. Moreover, it is shown that the numerous delicate cloudstructures in the example marine boundary layer scenes, resolved by thehigh-resolution ASTER retrievals, are smoothed by the MODIS observations. Theoverall good agreement between the research-level ASTER results and theoperational MODIS C6 products proves the feasibility of MODIS-like retrievalsfrom ASTER reflectance measurements and provides the basis for future studiesconcerning the scale dependency of satellite observations andthree-dimensional radiative effects

Marine boundary layer cloud property retrievals from high-resolution ASTER observations: case studies and comparison with Terra MODIS