The Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) Project is a comprehensive ground-based instrument suite that expands the Arctic Observing Network by adding cloud, atmosphere, and precipitation measurements, and associated higher-order data products, to Summit, Greenland at the top of the Greenland Ice Sheet (GIS).  The ICECAPS Project instrumentation include a cloud radar, two microwave radiometers, an Atmospheric Emitted Radiance Interferometer, an X-band precipitation sensor, a ceilometer, a micropulse lidar, and a twice-daily radiosonde program, which take focused measurements of the cloud, atmosphere, precipitation, and radiation properties over the GIS.  The data products produced from the ICECAPS Project include:

  • Atmospheric State - temperature and moisture profiles through the troposphere and lower stratosphere
  • Cloud Macrophysics - cloud occurrence, vertical boundaries, and temperatures
  • Cloud Microphysics - cloud phase, water content, optical depth, and particle size
  • Precipitation - precipitation type and rate
  • Cloud Radiative Forcing - impact of clouds on the surface radiation balance

Contact information

Claire Pettersen
University of Wisconsin–Madison
1225 W Dayton St
Madison, WI 53706
email contact form

Principal Investigators

  • Von Walden - WSU
  • Matthew Shupe - CU, Boulder
  • Dave Turner - OU
  • Ralf Bennartz - SSEC/VU

Funding contributors and acknowledgements

This research is supported by grants from the National Science Foundation: NSF Awards: 1414314 - WSU, 1304692 - UO, 1303879 - CU, 1304544 - UW

Additional Instrumentation support from Department of Energy - Atmospheric Radiation Measurement, Environment Canada and the National Oceanic and Atmospheric Association.

May 26, 2015