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Folders: ROOT > ScienceBase Catalog > LC MAP - Landscape Conservation Management and Analysis Portal > California Landscape Conservation Cooperative > CA LCC External Projects (funded) > Ecologically Relevant Pacific Coastal Fog Datasets ( Show all descendants )

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_____Ecologically Relevant Pacific Coastal Fog Datasets
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This dataset contains monthly average hours of fog and low cloud cover (FLCC) per day for North and Central Coastal California. The set of 42 grids has one for each summer month (June, July, August, and September) for each year (1999 - 2009), except for 2 missing months (June 2001 and August 2006) . Grid cell values were calculated using eleven years of hourly, day and night, cloud maps derived from geostationary operational environmental satellite (GOES) images collected and processed by the Cooperative Institute for Research in the Atmosphere (CIRA).For more information about this data and the Pacific Coastal Fog Project, see http://geography.wr.usgs.gov/fog (link is external) (link is external) and this article...
BayGEO Journal Article by Alicia Torregrosa explaining the challenges of mapping fog and the techniques used to create the Fog and Low Cloud Cover map generated from GOES imagery. Karl the Fog is a twitter handle @KarlTheFog for fog watchers.Intro:Within the world of mapping, clouds are a pesky interference to be removed from satellite remote sensed imagery. However, to many of us, that is a waste of pixels. Cloud maps are becoming increasingly valuable in the quest to understand land cover change and surface processes. In coastal California, the dynamic summertime interactions between air masses, the ocean, and topography result in blankets of fog and low clouds flowing into low lying areas of the San Francisco...
A survey of natural resource specialists and land managers was conducted at the beginning of the Pacific Coastal Fog Project. Survey results showed that the most urgently needed dataset was a fog frequency map to help make better natural resource decisions for ecosystem restoration, conservation, and preparing for future climate conditions. Fog maps like these could show which areas receive more or less (or no) fog. This data would help land managers understand the influence of fog on patterns of vegetation distribution, wildfire severity, and stream temperature.The U.S. National Weather Service (NWS) has used satellite camera imagery feeds since 1960 to improve real-time weather forecasting. Originally the images...
The raster grids in this dataset show the relative amount of summertime fog and low cloud cover (FLCC) over a decade for North and Central Coastal California on either a monthly or annual basis. Summertime FLCC is calculated as the average FLCC hours per day from an archive of hourly, day and night, June, July, August, and September, 1999 - 2009, GOES (geostationary operational environmental satellite) images collected and processed into ~26, 000 cloud maps by the Cooperative Institute for Research in the Atmosphere (CIRA). These decadal average FLCC rasters do not include years 2001 and 2006 due to missing or incomplete data for June 2001 and August 2006.Layers included:Files, Description1 Decadal Summer (average...
To climate scientists, marine fog’s physical opacity symbolizes how much remains to be discovered about the atmospheric phenomenon. This article outlines what is known and unknown about fog and its relationship with climate change.
These materials, most of which are in PDF format, are a record of what members of the Pacific Coastal Fog Project have presented at various scientific and public meetings. They range from slide shows given during technical sessions at scientific conferences, to presentations delivered to potential funders and talks to the general public interested in the subject of coastal marine fog. These presentations and posters, like the WebEx recordings, are also documents of the process of creating common knowledge. Although the material presented may be polished research products, the process of sharing across disciplines is not as tidy.Presentation Titles:Topic Presenter Affiliation DateInfluence of Fog and Overcast on...
Website with project description, access to data, Building Commons Knowledge webinar discussions, and Public Presentations.These archives are intended to support the research of the marine fog science community and others interested in fog science research results. The archives are divided into two sections: Building Common Knowledge: This series of research discussions in webinar format has been ongoing since 2011. The webinar series was started so that members of the Pacific Coastal Fog Project could educate each other: we came to the study of fog from different fields. We are an interdisciplinary group looking for linkages across our disciplines that help us investigate the complex dynamics of the coastal marine...
Fog and low cloud cover (FLCC), is very important for coastal California during the seasonally arid Meiterranean climate summer month s (June – September). The low stratus and stratocumulus clouds form ov er the ocean, adv ec t onsh ore as fog and low clouds altering the water, energy, and nutrient flux of coastal ecosystem s. Precisely located fog belt zones an be used to quantify the impacts of FLCC on ecosystem dynamics. The water and shade cover that FLCC provides during hot and dry summer periods is especially critical for endan ered species such as coho salmon. This contour map shows average daily summertime hours in 30 minute intervals. More than 26,000 hours of weather satellite imagery from 1999 to 2009...
The objective of this review is to discuss physical processes over a wide range of spatial scales that govern the formation, evolution, and dissipation of marine fog. We consider marine fog as the collective combination of fog over the open sea along with coastal sea fog and coastal land fog. The review includes a history of sea fog research, field programs, forecasting methods, and detection of sea fog via satellite observations where similarity in radiative properties of fog top and the underlying sea induce further complexity. The main thrust of the study is to provide insight into causality of fog including its initiation, maintenance, and destruction. The interplay between the various physical processes behind...