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Solar irradiance nowcasting case studies near Sacramento
The Sun4Cast solar power forecasting system, designed to predict solar irradiance and power generation at solar farms, is composed of several component models operating on both...- publication PDF
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Neutral winds from mesosphere to thermosphere -- past, present, and future outlook
The Earth's upper atmosphere (85-550 km) is the nearest region of geospace and is highly dynamic in nature. Neutral winds impact a large portion of the dynamics in this region....- publication PDF
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Adaptively implicit advection for atmospheric flows
Implicit time‐stepping for advection is applied locally in space and time where Courant numbers are large, but standard explicit time‐stepping is used for the...- publication PDF
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Testing methods for reconstructing glacial Antarctic circumpolar current...
The Antarctic Circumpolar Current (ACC) plays a vital role in the interbasin exchange of ocean properties. A robust method to reconstruct the ACC baroclinic transport is helpful...- publication PDF
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Data assimilation: A fully nonlinear approach to ensemble formation using...
Operational forecasting with simulation models involves the melding of observations and model dynamics to determine a set of initial conditions for each forecast. The Kalman...- publication PDF
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Ecosystem function in complex mountain terrain: Combining models and...
Abiotic factors structure plant community composition and ecosystem function across many different spatial scales. Often, such variation is considered at regional or global...- publication PDF
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Recent divergences in stratospheric water vapor measurements by frost point...
Balloon-borne frost point hygrometers (FPs) and the Aura Microwave Limb Sounder (MLS) provide high-quality vertical profile measurements of water vapor in the upper troposphere...- publication PDF
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Impact of loss of U.S. microwave and radio occultation observations in...
As the U.S. polar-orbiting satellites NOAA-15, -18, and -19 and NASA's Aqua satellite reach the ends of their lives, there may be a loss in redundancy between their microwave...- publication PDF
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Technical Note: Comparison of ensemble Kalman filter and variational...
Data assimilation (DA) approaches, including variational and the ensemble Kalman filter methods, provide a computationally efficient framework for solving the COâ source-sink...- publication PDF
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On the dynamics of the East African Jet. II: Jet transients
A barotropic, primitive equation model on an equatorial beta plane is used to investigate the transient behavior of the East African jet. Both analytic and numerical solutions...- publication PDF
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Local and remote controls on observed Arctic warming
The Arctic is warming two to four times faster than the global average. Debate continues on the relative roles of local factors, such as sea ice reductions, versus remote...- publication PDF
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Coupled air quality and boundary-layer meteorology in Western U.S. basins...
Wintertime episodes of high aerosol concentrations occur frequently in urban and agricultural basins and valleys worldwide. These episodes often arise following development of...- publication PDF
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Stochastic decadal projections of Colorado River streamflow and reservoir...
Decadal (similar to 10-year)-scale flow projections in the Colorado River Basin (CRB) are increasingly important for water resources management and planning of its reservoir...- publication PDF
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A case study of radar observations and WRF LES simulations of the impact of...
Profiling airborne radar data and accompanying large-eddy-simulation (LES) modeling are used to examine the impact of ground-based glaciogenic seeding on cloud and precipitation...- publication PDF
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PDRMIP: A precipitation driver and response model intercomparison...
As the global temperature increases with changing climate, precipitation rates and patterns are affected through a wide range of physical mechanisms. The globally averaged...- publication PDF
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Robust and nonrobust aspects of Atlantic meridional overturning circulation...
Robust and nonrobust aspects of Atlantic meridional overturning circulation (AMOC) variability and mechanisms are analyzed in several 600-yr simulations with the Community Earth...- publication PDF
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Bjerknes-like compensation in the wintertime North Pacific
Observational and model evidence has been mounting that mesoscale eddies play an important role in airâsea interaction in the vicinity of western boundary currents and can...- publication PDF
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Validation of the CrIS fast physical NH3 retrieval with ground-based FTIR
Presented here is the validation of the CrIS (Cross-track Infrared Sounder) fast physical NH3 retrieval (CFPR) column and profile measurements using ground-based Fourier...- publication PDF
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High ice water content conditions associated with wintertime elevated...
Aircraft flying through areas of high ice water content (HIWC) can experience engine damage and/or failure. HIWC is typically associated with convection and the microphysical...- publication PDF
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The impact of raindrop collisional processes on the polarimetric radar variables
The impact of the collisional warm-rain microphysical processes on the polarimetric radar variables is quantified using a coupled microphysicsâelectromagnetic scattering...- publication PDF