Weatherhead Research Group
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Project Information

We are involved in detecting and assessing the contributions of natural variability and long-term environmental change in datasets recorded at all atmospheric levels, from the earth's surface to the ionosphere.

U.S. Climate Reference Network (USCRN) The USCRN is a climate monitoring network being developed through the National Climatic Data Center as part of a NOAA initiative. Its primary goal is to provide future long-term homogeneous observations of temperature and precipitation that can be coupled to long-term historical observations for the detection and attribution of present and future climate change. We are working closely with NCDC personnel to develop appropriate QA/QC criteria for the USCRN precipitation measurements. Understanding the expected long-term behavior of the instrument along with its ability to perform in both low and high precipitation events will improve the overall scientific usefulness of the data. (View documents related to precipitation work.)

Dr. Weatherhead was a contributing author on the Intergovernmental Panel on Climate Change (IPCC). These efforts were highlighted in the 2007 Nobel Peace Prize granted to Al Gore and the IPCC.

Arctic Climate Impact Assessment The Arctic Climate Impact Assessment (ACIA) is an international project of the Arctic Council and the International Arctic Science Committee (IASC), to evaluate and synthesize knowledge on climate variability, climate change, and increased ultraviolet radiation and their consequences. Dr. Weatherhead is Lead Author on the assessment's chapter on ozone and UV radiation, and is also a member of the Assessment Steering Committe (ASC).
World Meteorological Organization Dr. Weatherhead is the International Coordination Chair for the UV Scientific Advisory Group. She also served as a reviewer for the 2002 UNEP/WMO Ozone Assessment.
UV Radiation Page Dr. Weatherhead's research group has developed and hosts an extensive web site with information on worldwide UV monitoring and numerous links to UV education and health effect information.
FSL Radiosonde Data We are involved in analyzing temperature profiles from the long-term record U.S. radiosonde network observations, currently archived at NOAA's Forecast Systems Laboratory. By assessing the natural variability and other factors influencing the data, we can determine the altitudes and locations that might provide earliest confirmation of long-term climate change. Preliminary results have been published in the journal Physics and Chemistry of Earth.
TOMS Ozone We are involved in analyzing ozone data from the Total Ozone Mapping Spectrometer and from Umkehr to evaluate recent improvements to the Umkehr retrieval algorithm and to assess signs of ozone recovery at various altitudes and locations.
Ionosonde Analysis As part of a project through NASA's Living With a Star program, we are collaborating with scientists in NOAA's Space Environment Center to evaluate natural forcing and signs of climate change in ionospheric data. The ionosphere is subject to forcing by various factors, including changes in solar input and geomagnetic activity. These inputs, coupled with instrument changes over the course of the long-term record, complicate the ability to isolate a long-term or anthropogenic signal.
Study of Envionmental Arctic Change (SEARCH) SEARCH is a cooperative effort to understand the full scope of the changes occurring in the Arctic. Through SEARCH, scientists will research exactly how the observed changes relate to the Arctic's natural variability and if the changes indicate the start of a major climate shift in the North. We will be working with the SEARCH program to evaluate current Arctic monitoring efforts and their relation to known large regional variabilities in the Arctic.