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About this collection

Extent

1 digital object.

Cite This Work

DeHaan, Laurel L.; Wilson, Anna M.; Kawzenuk, Brian; Zheng, Minghua; Delle Monache, Luca; Wu, Xingren; Lavers, David A.; Ingleby, Bruce; Tallapragada, Vijay; Pappenberger, Florian; Ralph, F. Martin (2023). Data from: Impacts of Dropsonde Observations on Forecasts of Atmospheric Rivers and Associated Precipitation in the NCEP GFS and ECMWF IFS models. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0RJ4JPW

Description

European Centre for Medium-Range Weather Forecasts (ECMWF) and National Centers for Environmental Prediction (NCEP) integrated vapor transport (IVT) and precipitation NetCDF data from control forecasts and data denial forecasts (without dropsondes assimilated) for Atmospheric River Reconnaissance (AR recon) 2019 and 2020. Forecast lead times are from 24 to 120 hours. NCEP files were created using the Global Forecast System (GFS) v15. ECMWF files were created using the Integrated Forecast System (IFS) cycles 45r1 and 46r1. Control (CTRL or buoy_CTRL) forecasts are the operational forecasts from each center. The denial (Deny) forecasts only differ from the control in that the dropsondes from AR recon (Atmospheric River Reconnaissance) were excluded from the assimilation. Precipitation is the 24-hour accumulation. IVT is computed from pressure level data, integrated from the surface to 300 hPa (for ECMWF) and from the surface to 200 hPa (for NCEP).

Creation Date

• 2019-02-01 to 2019-03-01 and 2020-01-24 to 2020-03-16

Date Issued

• 2023

Director

• Ralph, F. Martin

Author

• DeHaan, Laurel L.

Contributors

• Delle Monache, Luca
• Ingleby, Bruce
• Kawzenuk, Brian
• Lavers, David A.
• Pappenberger, Florian
• Tallapragada, Vijay
• Wilson, Anna M.
• Wu, Xingren
• Zheng, Minghua

Funding

This research was funded by the U.S. Army Corps of Engineers (USACE) as part of Forecast Informed Reservoir Operations under Grant W912HZ-15-2-0019 and by the California Department of Water Resources Atmospheric River Program (4600013361).

Geographics

• Eastern Pacific Ocean
• West (U.S.)

Topics

• Atmospheric river reconnaissance
• Atmospheric rivers
• Data denial
• Dropsonde
• Integrated vapor transport (IVT)
• Precipitation

Formats

View formats within this collection

• data
• text

Language

• English

Identifier

Identifier: Anna M. Wilson: https://orcid.org/0000-0001-7342-1955

Identifier: Brian Kawzenuk: https://orcid.org/0000-0003-1194-4296

Identifier: Bruce Ingleby: https://orcid.org/0000-0002-3410-3951

Identifier: David A. Lavers: https://orcid.org/0000-0002-7947-3737

Identifier: F. Martin Ralph: https://orcid.org/0000-0002-0870-6396

Identifier: Florian Pappenberger: https://orcid.org/0000-0003-1766-2898

Identifier: Laurel L. DeHaan: https://orcid.org/0000-0002-0842-8760

Identifier: Luca Delle Monache: https://orcid.org/0000-0003-4953-0881

Identifier: Minghua Zheng: https://orcid.org/0000-0001-5352-0745

Identifier: Vijay Tallapragada: https://orcid.org/0000-0003-4255-897X

Identifier: Xingren Wu: https://orcid.org/0000-0003-4169-3707

Related Resources

Primary associated publication

• DeHaan, L. L., Wilson, A. M., Kawzenuk, B., Zheng, M., Delle Monache, L., Wu, X., Lavers, D. A., Ingleby, B., Tallapragada, Pappenberger, F., and Ralph, F. M., 2023. Impacts of dropsonde observations on forecasts of atmospheric rivers and associated precipitation in the NCEP GFS and ECMWF IFS models. Weather and Forecasting. https://doi.org/10.1175/WAF-D-23-0025.1

Other resource

• ECMWF Integrated Forecasting System (IFS): https://www.ecmwf.int/en/forecasts/documentation-and-support/changes-ecmwf-model
• NOAA Global Forecast System (GFS): https://www.emc.ncep.noaa.gov/emc/pages/numerical_forecast_systems/gfs.php

Collection image

• Image source: Laurel DeHaan. "Difference in IVT error between control and denial, Feb 15, 2019."