Figure Gallery

Gallery of Movies:

These movies can be quite large. All are QuickTime. Please cite when using.

Well mixed STBL (albedo | cross section) || More decoupled STBL (albedo | cross section) || CTBL (three panel)

Gallery of Figures:

For figures taken from publications the captions are reproduced as is the link to the publication. Thumbnails are shown on left, pdf source files can be downloaded by clicking on the thumbnail. For some figures color images are also provided. Please cite when using.

conceptual figure of stbl using data from DYCOMS-II RF01

Conceptual diagram with RF01 data of stratocumulus-topped PBL

Cartoon of well-mixed, nonprecipitating, stratocumulus layer, overlaid with data from research flight 1 of DYCOMS-II. Plotted are the full range, middle quartile, and mean of θl , qt , and ql from all the data over the target region binned in 30m intervals. Heights of cloud base and top are indicated, as are mixed layer values and values just above the top of the boundary layer of various thermodynamic quantities. The adiabatic liquid water content is indicated by the dash-dot line.

Fig 4, Atmospheric Moist Convection (Stevens, 2005). [color]

Mean stratocumulus structure observed during DYCOMS-II

Sketch of mean thermodynamics structure of lower troposphere, for July 2001, near 120W 30N. The potential temperature, specific humidity and height at 850 hPa are indicated, as are values within and just above the STBL.

Fig 12. On the structure of the lower troposphere in the summertime stratocumulus regime of the northeast Pacific (Stevens et al., 2007).

GCSS simulations of RF01

Time-series of cloud boundaries of master ensemble, with shading as in Fig. 2. Markers identify cloud boundaries following analysis of Stevens et al. (2003b), wherein the data were tagged for their Lagrangian coherency. The LES case here was designed to match the observations over the central study region where most of the data was collected. In this figure unboxed markers denote cloud base estimates from the lifting condensation level calculated using in situ data collected below cloud top or cloud top estimates derived from lidar and radar backscatter. Boxed markers indicate estimates of cloud base and top from aircraft soundings. The straight solid line denotes the best fit line to the cloud base over the central study region, it descends at a rate of 2m per hour. Dashed lines are fits by eye to cloud top data.

Fig 3. Evaluation of Large-Eddy Simulations via Observations of Nocturnal Marine Stratocumulus (Stevens et al., 2005)

Clouds in the Hadley Cell

Cloud regimes in thermally direct circulations. Adapted from Arakawa (1975).

Fig 1, Atmospheric Moist Convection (Stevens, 2005).

Structure of the Trade-Cumulus Layer During RICO

Structure of the cumulus topped boundary layer as observed during the 10th research flight of the Rain in Cumulus over the Ocean Field Study. The ordinate shows the top of the cloud layer and the LCL of the mean surface layer air. The values on the x-axis give s/cp averaged over the sub-cloud layer, at 2300 m and at 3500 m for the left panel; q at 3500 m, 2300 m and averaged over the sub-cloud layer for the middle panel; and the liquid-water specific humidity over cloud passes only (where cloud coverage is typically 5-10%) in the rightmost panel. Basic processes determining the thermodynamic structure of the cloud and sub-cloud layers are indicated schematically.

Fig 5. Bulk boundary layer concepts for simplified models of tropical dynamics,(Stevens et al., 2006)

Climatology and Logistics During RICO

The RICO Field Study

RICO experimental area, sampling strategy and climatology

Fig 2.Rain in (shallow) cumulus over the ocean--The RICO campaign (Rauber, Stevens et al., 2006)

RICO Mean SkewT

The RICO Sounding: Skew-T Log-P diagram for mean RICO conditions

Skew-Temperature Log Pressure Diagram showing mean conditions during RICO

Fig 5.Rain in (shallow) cumulus over the ocean--The RICO campaign (Rauber, Stevens et al., 2006)


Cartoon of Pockets of Open Cells

Conceptual rendering of POC and neighboring non-POC or stratiform region. Also
shown is a schematic of the horizontal and vertical variations in theta-e and inferred mesoscale circulations.

Fig 11.Observations of the structure of heavily precipitating marine stratocumulus (vanZanten and Stevens et al., 2005)