Deriving cloud overlap statistics from radar

By Robin J. Hogan, Anthony Illingworth. 2000

270 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/c031910553bd9e07740adabfbf31048bc2d2fc5a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

In Global and Planetary Change

Citations in the corpus

Impact of a New Radiation Package, McRad, in the ECMWF Integrated Forecasting System (2008, methodology): “Also, ground-based cloud radar measurements at a midlatitude location (Hogan and Illingworth 2000, 2003) were showing that the maximum-random COA generally used in GCM-type RT schemes (Barker et al. 2003) did not provide enough decorrelation, even for cloud layers distributed continuously over the…”
Relationships among cloud occurrence frequency, overlap, and effective thickness derived from CALIPSO and CloudSat merged cloud vertical profiles (2010, unknown): “[27] In earlier studies [ Hogan and Illingworth, 2000; ”
The new GFDL global atmosphere and land model AM2-LM2: Evaluation with prescribed SST simulations (2004, background): “Because of the coarse vertical resolution in the upper troposphere (Table 2), this assumption is acceptable there, but for clouds in the lower troposphere this assumption is poor (Hogan and Illingworth 2000).”
A Flexible and Efficient Radiation Scheme for the ECMWF Model (2018, methodology): “EXP-RAN overlap is obtained by substituting equations 1 and 2 of Hogan and Illingworth (2000) into their equation 4 to obtain where 𝛼 is the overlap parameter described in section 3.1.”
A global survey of cloud overlap based on CALIPSO and CloudSat measurements (2015, background): “For example, Hogan and Illingworth (2000) found 469 that a tends to increase with decreasing spatial and temporal resolution (that is, with 470 an increasing vertical and horizontal scale of GCMs), but one interesting finding is 471 that, with a temporal resolution of 3 hour (that is, horizontal…”
Assessing 1D atmospheric solar radiative transfer models: Interpretation and handling of unresolved clouds (2003, background): “For a discussion on the overlapping structure of real clouds derived from cloud-proﬁling radar, see Hogan and Illingworth (2000).”
Comparing clouds and their seasonal variations in 10 atmospheric general circulation models with satellite measurements (2005, background): “Cloud overlapping varies smoothly between maximum and random as the distance between adjacent layer increases [Hogan and Illingworth, 2000; Pincus et al., 2005].”
Explicit representation of subgrid heterogeneity in a GCM land surface scheme (2003, background): “2001), and results from recent modeling and observational studies (Barker et al. 1999; Hogan and Illingworth 2000) will allow the development of improved representations of vertical cloud distributions.”
Parameterization of Generalized Cloud Overlap for Radiative Calculations in General Circulation Models (2001, background): “…assumption has some observational support and is more consistent with estimates of total cloud cover (Tian and Curry 1989), although radar data indicate that the maximum overlap between adjacent clouds may relax to random overlap over vertical distances of 1.5–3 km (Hogan and Illingworth 2000).”