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The East Pacific Investigation of Climate Processes in the Coupled
Ocean-Atmosphere System (EPIC)
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Marine Iguana near Puerto Ayora,
Galapagos with R.V. Brown in the distance
Overview of the Experiment
EPIC-2001 was a combined oceanic-atmospheric
field program aimed at improving our understanding of air-sea
coupling processes in the east Pacific ITCZ and cold tongue regions
(see
scientific overview document). The intensive observation
period (IOP) of the experiment was carried out from September
to October 2001in the vicinity of 0-10°N, 95°W (see
map). The ultimate objective of the EPIC dataset is to improve
air-sea interaction and boundary-layer parameterizations in models
of the ocean and the atmosphere, and to validate coupled models.
The focus of the CSU Radar Meteorology
group activities in EPIC was to study convective processes in
the warm pool region using the C-band radar and launching upper
air soundings on-board the NOAA
R/V Ronald H. Brown. EPIC participants from the CSU Radar
Meteorology Group on-board the Brown included: Robert
Cifelli, Walt
Petersen, and Bob Bowie.
Dennis Boccippio of the Global
Hydrology and Climate Center at NASA MSFC also participated
in the CSU group activities (click here for a group photo courtesy
of J. Richards). Participation
and research analyses for EPIC was supported by the National Science
Foundation.
Documentation
EPIC-ITCZ Image Browse Products
Research
Examples From EPIC
Photo Gallery
EPIC Web Sites of
Interest
Radar Meteorology
Group EPIC Publications
Journal Publications
- Cifelli, R., S.W. Nesbitt, S.A. Rutledge, W.A. Petersen, and S. Yuter, 2008: Diurnal characteristics of precipitation features over the tropical east Pacific: A comparison of the EPIC and TEPPS regions. J. Climate, 21, 4068-4086.(click here for a PDF version of the paper).
- Cifelli, R., S.W. Nesbitt, S.A. Rutledge, W.A. Petersen, and S. Yuter, 2007: Radar characteristics of precipitation features in the EPIC and TEPPS regions of the east Pacific. Mon. Wea. Rev., 135, 1576-1595.(click here for a PDF version of the paper).
- Pereira, L.G., and S.A. Rutledge, 2006: Diurnal cycle of shallow and deep convection for a tropical land and an ocean environment and its relationship to synoptic wind regimes. Mon. Wea. Rev., 134, 2688-2701. (click here for a PDF version of the paper).
- Raymond, D.J., Esbensen, S.K., Paulson, C., Gregg, M., Bretherton, C.S., Petersen, W. A., Cifelli, R., Shay, L.K., Ohlmann, C., Zuidema, P., 2004: EPIC2001 and the Coupled Ocean Atmosphere System of the Tropical East Pacific. Bull. Amer. Meteor. Soc., 85, 1341-1354.(click here for a PDF version of the paper).
- Petersen, W.A., R. Cifelli,
D.J. Boccippio, S.A. Rutledge, and C. Fairall,2003: Convection
and easterly wave structure in the eastern Pacific warm pool
during EPIC-2001. J. Atmos. Sci., 60, 1754-1773 (click here for a PDF
version of the paper).
Conference Publications
- Boccippio, D.J., W.A. Petersen,
R. Cifelli, and S.A. Rutledge, 2002: Diurnal cycle of convection
in the east Pacific ITCZ during EPIC-2001. Preprint Volume,
25th Conference on Hurricanes and Tropical Meteorology, American
Meteorological Society, 29 April - 3 May, 2002, San Diego, CA
(click here for a PDF
version of the paper).
- Cifelli, R., W.A. Petersen,
D.J. Boccippio, C.W. Fairall, and S.A. Rutledge, 2002: Ship
radar observations of a developing tropical storm in the east
Pacific. Preprint Volume, 25th Conference on Hurricanes
and Tropical Meteorology, American Meteorological Society,
29 April - 3 May, 2002, San Diego, CA (click
here for a PDF version of the paper).
- Petersen, W.A., R. Cifelli,
D.J. Boccippio, and S.A. Rutledge, 2002: Convection and easterly
waves observed in the eastern Pacific ITCZ during EPIC 2001.
Preprint Volume, 25th Conference on Hurricanes and Tropical
Meteorology, American Meteorological Society, 29 April -
3 May, 2002, San Diego, CA (click
here for a PDF version of the paper).
- Nesbitt, S.W., R. Cifelli, S.A.
Rutledge, and E.J. Zipser,2003: Field-campaign radar data
collected in the context of the TRMM climatology: Comparisons
of observed storm morphology and validation opportunities.
Preprint Volume, 31st Conference on Radar Meteorology,
American Meteorological Society, 6-12 August, 2003, Seattle,
WA (click here for
a PDF version of the paper).
-
Cifelli, R., S.W. Nesbitt, S.A. Rutledge, W.A. Petersen, and S. Yuter, 2004:
Convective Variability Across The East Pacific.
Preprint Volume, 2004 International TRMM Conference
(
click here for a PDF version of the paper).
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