Details:

Journal Title:
Weather and Forecasting
Personal Author:
Djalalova, Irina V. ; Olson, Joseph ; Carley, Jacob R. ; Bianco, Laura ; Wilczak, James M. ; ... More +
Djalalova, Irina V. ; Olson, Joseph ; Carley, Jacob R. ; Bianco, Laura ; Wilczak, James M. ; Pichugina, Yelena ; Banta, Robert ; Marquis, Melinda ; Cline, Joel Less -
NOAA Program & Office:
OAR (Oceanic and Atmospheric Research) ; PSL (Physical Sciences Laboratory) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; GSL (Global Systems Laboratory) ; ... More +
OAR (Oceanic and Atmospheric Research) ; PSL (Physical Sciences Laboratory) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; GSL (Global Systems Laboratory) ; NWS (National Weather Service) ; EMC (Environmental Modelling Center) Less -
Description:
During the summer of 2004 a network of 11 wind profiling radars (WPRs) was deployed in New England as part of the New England Air Quality Study (NEAQS). Observations from this dataset are used to determine their impact on numerical weather prediction (NWP) model skill at simulating coastal and offshore winds through data-denial experiments. This study is a part of the Position of Offshore Wind Energy Resources (POWER) experiment, a Department of Energy (DOE) sponsored project that uses National Oceanic and Atmospheric Administration (NOAA) models for two 1-week periods to measure the impact of the assimilation of observations from 11 inland WPRs. Model simulations with and without assimilation of the WPR data are compared at the locations of the inland WPRs, as well as against observations from an additional WPR and a high-resolution Doppler lidar (HRDL) located on board the Research Vessel Ronald H. Brown (RHB), which cruised the Gulf of Maine during the NEAQS experiment. Model evaluation in the lowest 2 km above the ground shows a positive impact of the WPR data assimilation from the initialization time through the next five to six forecast hours at the WPR locations for 12 of 15 days analyzed, when offshore winds prevailed. A smaller positive impact at the RHB ship track was also confirmed. For the remaining three days, during which time there was a cyclone event with strong onshore wind flow, the assimilation of additional observations had a negative impact on model skill. Explanations for the negative impact are offered.
Source:
Weather and Forecasting, 31(4), 1071-1091.
DOI:
https://doi.org/10.1175/waf-d-15-0104.1
Document Type:
Journal Article
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:5834dd51e5a45549b83781751bee1a86daa9d31aa6825f7a85ade2837c5f29d6
Download URL:
https://repository.library.noaa.gov/view/noaa/14533/noaa_14533_DS1.pdf
File Type:

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