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1 Developing an Upper-Air Climate Monitoring Capability Richard D. Rosen, Ph.D. Assistant Administrator NOAA/Oceanic and Atmospheric Research.

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Presentation on theme: "1 Developing an Upper-Air Climate Monitoring Capability Richard D. Rosen, Ph.D. Assistant Administrator NOAA/Oceanic and Atmospheric Research."— Presentation transcript:

1 1 Developing an Upper-Air Climate Monitoring Capability Richard D. Rosen, Ph.D. Assistant Administrator NOAA/Oceanic and Atmospheric Research

2 2 “A Comparison between Circulation Statistics Computed from Conventional Data and NMC Hough Analyses”, Rosen and Salstein (1980) Radiosondes as a touchstone for upper-air climate monitoring Spatial sampling issues

3 3 “Sensitivity of Continental-Scale Climate Trend Estimates to the Distribution of Radiosondes over North America”, Rosen et al. (2003) Map of the trend in seasonal mean 500-mb temperature over North America during MAM 1959–96 based on the full NCEP–NCAR reanalysis with isolines drawn every 0.1 K (decade)−1 and negative contours dashed. Closed circles indicate grid points lying near radiosonde stations in the GCOS network. Continental-scale temperature trends can be adequately sampled with a small network of stations

4 4 Requirements 1)Quantities : temperature, humidity, wind, ozone, trace species, tropopause height, cloud properties, radiation… priorities? 2)Accuracy : means, variability, and trends; benchmark observations 3)Precision : level needed to achieve desired accuracy 4)Spatial/Temporal Resolution : biases, aliasing 5)Long-term stability 6)Climate monitoring principles : parallel testing, metadata, historical significance, data access, … Need to address:

5 5 Challenges to Developing Requirements for Climate Monitoring Relative inexperience with operational climate services to help refine requirements Diverse nature of the “climate community” in reaching a consensus on requirements Multiplicity of scientific problems under the climate umbrella Workshop Agenda

6 6 NOAA Approaches to Coordinating Activities NOAA Councils: Observing Systems Council (chaired by NESDIS & NWS) – Strategic Direction for NOAA’s Global Integrated Environmental Observation and Data Management System Research Council (chaired by OAR) – 5-yr Research Plan and 20-yr Research Vision Ocean Council (chaired by NOS & NMFS) Internal External Coordinated Observation and Prediction of the Earth System (COPES)/World Climate Research Program (WCRP) Global Earth Observation System of Systems (GEOSS) Mission Goals: Climate, Ecosystems, Weather & Water, Commerce & Transportation Cross - cutting programs

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