Rob Newsom
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View article: Performance of reanalysis and mesoscale models for wind resource assessment off the coast of Hawaii
Performance of reanalysis and mesoscale models for wind resource assessment off the coast of Hawaii Open
The eastern Hawaii coast in the United States is characterized by considerable wind resource fuelled by persistent trade winds, making it an important area for wind energy research. The need is strong for reanalyses, higher-resolution regi…
View article: Operational wind plants increase planetary boundary layer height: an observational study
Operational wind plants increase planetary boundary layer height: an observational study Open
As wind energy deployment grows, interactions between wind plants and the surrounding environment become more prevalent. The current investigation seeks to understand these interactions by characterizing the impact of wind plants on the pl…
View article: Large-eddy simulation of an atmospheric bore and associated gravity wave effects on wind farm performance in the southern Great Plains
Large-eddy simulation of an atmospheric bore and associated gravity wave effects on wind farm performance in the southern Great Plains Open
Gravity waves are a common occurrence in the atmosphere, with a variety of generation mechanisms. Their impact on wind farms has only recently gained attention, with most studies focused on wind farm-induced gravity waves. In this study, t…
View article: Spatial and Temporal Variability of Vertical Velocity under Shallow Cumulus
Spatial and Temporal Variability of Vertical Velocity under Shallow Cumulus Open
Vertical velocity distribution below cloud is one of the key determinants of cloud life cycle, but observations of this variable are extremely sparse in space. Doppler lidar retrievals and large-eddy simulations at the U.S. Department of E…
View article: Assessment of Extinction‐, Satellite‐, and Model‐Based Vertical Cloud Condensation Nuclei (CCN) Retrieval Methods Using Airborne CCN Measurements Over the Southern Great Plains
Assessment of Extinction‐, Satellite‐, and Model‐Based Vertical Cloud Condensation Nuclei (CCN) Retrieval Methods Using Airborne CCN Measurements Over the Southern Great Plains Open
Accurate estimates of the vertical profile of cloud condensation nuclei (CCN) concentration are crucial to better quantify aerosol‐cloud interactions. We assessed the correlation between the vertical CCN concentrations obtained from extinc…
View article: Observations of wind farm wake recovery at an operating wind farm
Observations of wind farm wake recovery at an operating wind farm Open
The interplay of momentum surrounding wind farms significantly influences wake recovery, affecting the speed at which wakes return to their freestream velocities. Under stable atmospheric conditions, wind farm wakes can extend over conside…
View article: Lidar Wind and Turbulence Profiles / Derived Data
Lidar Wind and Turbulence Profiles / Derived Data Open
This dataset contains wind and turbulence profiles computed from PNNL's ground-based Doppler lidar (S/N 184) deployed on Nantucket.
View article: PNNL Scanning Lidar (184) / Reviewed data - with calibrated azimuth
PNNL Scanning Lidar (184) / Reviewed data - with calibrated azimuth Open
These data include scanning Doppler lidar measurements from the deployment of the PNNL HALO XR+ (s/n 184) at the Nantucket site. The measurements include calibrated beam azimuth angles, radial velocity, backscatter, signal to noise ratio p…
View article: Operational wind plants increase planetary boundary layer height: An observational study
Operational wind plants increase planetary boundary layer height: An observational study Open
As wind energy deployment grows, interactions between wind plants and the surrounding environment become more prevalent. The current investigation seeks to understand these interactions by characterizing the impact of wind plants on the pl…
View article: Methods to Evaluate Subcolumn Profiles Based on Two‐Point Diagnostics
Methods to Evaluate Subcolumn Profiles Based on Two‐Point Diagnostics Open
In atmospheric models, stochastic generation of subgrid‐scale profiles or “subcolumns” has been used for a variety of purposes. Such subcolumns can be generated from subgrid probability density functions (PDFs) at different vertical levels…
View article: Overview of preparation for the American WAKE ExperimeNt (AWAKEN)
Overview of preparation for the American WAKE ExperimeNt (AWAKEN) Open
The American WAKE ExperimeNt (AWAKEN) is a multi-institutional field campaign focused on gathering critical observations of wind farm–atmosphere interactions. These interactions are responsible for a large portion of the uncertainty in win…
View article: Large-eddy simulation of an atmospheric bore and associated gravity wave effects on wind farm performance in the Southern Great Plains
Large-eddy simulation of an atmospheric bore and associated gravity wave effects on wind farm performance in the Southern Great Plains Open
Gravity waves are a common occurrence in the atmosphere, with a variety of generation mechanisms. Their impact on wind farms has only recently gained attention, with most studies focused on wind farm-induced gravity waves. In this study, t…
View article: Virtual tower measurements during the American WAKE ExperimeNt (AWAKEN)
Virtual tower measurements during the American WAKE ExperimeNt (AWAKEN) Open
Dual-Doppler lidar measurements were made during the American WAKE ExperimeNt to provide height-resolved measurements of wind speed and direction at multiple locations immediately south of the leading row turbines in the King Plains wind f…
View article: Land-based wind plant wake characterization using dual-Doppler radar measurements at AWAKEN
Land-based wind plant wake characterization using dual-Doppler radar measurements at AWAKEN Open
Wind plant wakes have been shown to persist for tens of kilometers downstream in offshore environments, reducing the power output of neighboring plants, but their behavior on land remains relatively unexplored through observation. This stu…
View article: Review comment on wes-2024-29
Review comment on wes-2024-29 Open
Abstract. The interplay of momentum within wind farms significantly influences wake recovery, affecting the speed at which wakes return to their free-stream velocities. Under stable atmospheric conditions, wind farm wakes can extend over c…
View article: Assessing Impacts of Waves on Hub-Height Winds off the U.S. West Coast Using Lidar Buoys and Coupled Modeling Approaches
Assessing Impacts of Waves on Hub-Height Winds off the U.S. West Coast Using Lidar Buoys and Coupled Modeling Approaches Open
Given the importance of offshore wind energy development to the U.S. clean energy targets, it is vital to be able to characterize the wind resource in that environment accurately. Toward that end, two Bureau of Ocean Energy Management buoy…
View article: Observations of wind farm wake recovery at an operating wind farm
Observations of wind farm wake recovery at an operating wind farm Open
The interplay of momentum within wind farms significantly influences wake recovery, affecting the speed at which wakes return to their free-stream velocities. Under stable atmospheric conditions, wind farm wakes can extend over considerabl…
View article: Offshore low-level jet observations and model representation using lidar buoy data off the California coast
Offshore low-level jet observations and model representation using lidar buoy data off the California coast Open
Low-level jets (LLJs) occur under a variety of atmospheric conditions and influence the available wind resource for wind energy projects. In 2020, lidar-mounted buoys owned by the US Department of Energy (DOE) were deployed off the Califor…
View article: Doppler Lidar Motion-Correction (DLMC) Value-Added Product Report
Doppler Lidar Motion-Correction (DLMC) Value-Added Product Report Open
The U.S. Department of Energy Atmospheric Radiation Measurement (ARM) second ARM Mobile Facility (AMF2) Doppler lidar (S/N 0319-160) was deployed on the German ice breaker Polarstern during the Multidisciplinary Drifting Observatory for th…
View article: WFIP3 - RHOD Site - LLNL Scanning Lidar (Halo XR+ #190) / Raw Data
WFIP3 - RHOD Site - LLNL Scanning Lidar (Halo XR+ #190) / Raw Data Open
These data include raw scanning Doppler lidar measurements from the deployment of the LLNL HALO XR+ (s/n 190) at the Rhode Island site for WFIP3. The raw measurements include uncalibrated beam azimuth angles, radial velocity, backscatter, …
View article: 1Hz Lidar Winds / Reviewed Data
1Hz Lidar Winds / Reviewed Data Open
This dataset contains 1Hz, motion-corrected wind profiles from the WindCube lidar during the deployment of the DOE WindSentinel buoy near Oahu, Hawaii. The attached Lidar Buoy Data Dictionary provides further details on the various instrum…
View article: Doppler Lidar Motion-Correction Wind Profiles (DLMCPROF-WIND) Value-Added Product Report
Doppler Lidar Motion-Correction Wind Profiles (DLMCPROF-WIND) Value-Added Product Report Open
Wind speed and direction, together with pressure, temperature, and relative humidity, are the most fundamental atmospheric state parameters. Accurate measurement of these parameters is crucial for numerical weather prediction. Vertically r…
View article: Lidar / Processed Data
Lidar / Processed Data Open
These data include scanning Doppler lidar measurements from the deployment of the PNNL HALO XR+ (s/n 184) at the Nantucket site. The measurements include calibrated beam azimuth angles, radial velocity, backscatter, signal to noise ratio p…
View article: 10min Lidar Winds/ Derived Data
10min Lidar Winds/ Derived Data Open
This dataset contains 10-min averaged, motion-corrected wind profiles from the WindCube lidar during the deployment of the DOE WindSentinel buoy near Oahu, Hawaii. The attached Lidar Buoy Data Dictionary provides further details on the var…
View article: PNNL Scanning Doppler Lidar (S/N 184) / Raw Data
PNNL Scanning Doppler Lidar (S/N 184) / Raw Data Open
This dataset contains raw data from the PNNL scanning Doppler lidar (S/N 184), consisting of range- and time-resolved measurements of radial velocity, attenuated backscatter, intensity, and spectral width. We note that the beam azimuth ang…
View article: Case study of a bore wind-ramp event from lidar measurements and HRRR simulations over ARM Southern Great Plains
Case study of a bore wind-ramp event from lidar measurements and HRRR simulations over ARM Southern Great Plains Open
The rapid change of wind speed and direction on 21 August 2017 is studied using Doppler lidar measurements at five sites of the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) facility in north-central Oklahoma. The Dop…
View article: Year-long buoy-based observations of the air–sea transition zone off the US west coast
Year-long buoy-based observations of the air–sea transition zone off the US west coast Open
Two buoys equipped with Doppler lidars owned by the US Department of Energy (DOE) were deployed off the coast of California in autumn of 2020 by Pacific Northwest National Laboratory. The buoys collected data for an entire annual cycle at …
View article: Comment on wes-2023-152
Comment on wes-2023-152 Open
Abstract. Low-level jets (LLJs) occur under a variety of atmospheric conditions and influence the available wind resource for wind energy projects. In 2020, lidar-mounted buoys owned by the U.S. Department of Energy (DOE) were deployed off…
View article: Offshore low-level jet observations and model representation using lidar buoy data off the California coast
Offshore low-level jet observations and model representation using lidar buoy data off the California coast Open
Low-level jets (LLJs) occur under a variety of atmospheric conditions and influence the available wind resource for wind energy projects. In 2020, lidar-mounted buoys owned by the U.S. Department of Energy (DOE) were deployed off the Calif…