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How Much Predictive Skill Is Contained in the Thermal Structure of an Oceanic GCM?
Publisher: American Meteorological Society
Abstract: The time history of upper-ocean temperatures in the tropical Pacific has been used as a predictor in a statistical prediction scheme to forecast SST anomalies in this region. The temperature variations were taken from the ...
Potential Benefits of Seasonal Inflow Prediction Uncertainty for Reservoir Release Decisions
Publisher: American Meteorological Society
Abstract: This paper examines the conditions for which beneficial use of forecast uncertainty may be made for improved reservoir release decisions. It highlights the parametric dependencies of the effects of uncertainty in seasonal ...
Toward Understanding the Value of Climate Information for Multiobjective Reservoir Management under Present and Future Climate and Demand Scenarios
Publisher: American Meteorological Society
Abstract: Numerical simulation techniques and idealized reservoir management models are used to assess the utility of climate information for the effective management of a single multiobjective reservoir. Reservoir management considers ...
Conditional Probabilities, Relative Operating Characteristics, and Relative Operating Levels
Publisher: American Meteorological Society
Abstract: The relative operating characteristic (ROC) curve is a highly flexible method for representing the quality of dichotomous, categorical, continuous, and probabilistic forecasts. The method is based on ratios that measure ...
The Role of the Western Boundary in the ENSO Cycle: Experiments with Coupled Models
Publisher: American Meteorological Society
Abstract: Coupled models of the Pacific ocean?atmosphere system have been shown to produce oscillations in the model coupled system that resemble the observed El Niño?Southern Oscillation (ENSO) cycle in many respects. The tendency ...
Recent Trends in Rain Gauge Precipitation Measurements from the Tropical Pacific: Evidence for an Enhanced Hydrologic Cycle
Publisher: American Meteorological Society
Abstract: Analysis of recently compiled tropical Pacific rain gauge measurements shows a trend toward increased precipitation in the central tropical Pacific during the period 1971?90. Previous studies of precipitation trends in ...
Evidence for Intensification of North Pacific Winter Cyclones since 1948
Publisher: American Meteorological Society
Abstract: Using NCEP?NCAR reanalysis and in situ data, evidence of important changes in the winter (December?March) cyclone climatology of the North Pacific Ocean over the past 50 years is found. The frequency and intensity of extreme ...
Comparison of the Highly Reflective Cloud and Outgoing Longwave Radiation Datasets for Use in Estimating Tropical Deep Convection
Publisher: American Meteorological Society
Abstract: Currently, there are two long-term satellite-derived datasets most are frequently used as indices for tropical deep convection. These are the Outgoing Longwave Radiation (OLR) and Highly Reflective Cloud (HRC) datasets. ...
A Comparison of Some Tropical Ocean Models: Hindcast Skill and El Niño Evolution
Publisher: American Meteorological Society
Abstract: Tropical Pacific SST hindcasts are examined in the Zebiak and Cane (Lamont), Latif (MPIZ), Oberhuber (OPYC), and GFDL ocean models, each forced by the same wind-stress fields over the 1970?85 time interval. Skill scores ...