NorthWest Research Associates

Research interests: Boundary-layer meteorology: In particular, air-sea interaction in high winds and the effects of spray; air-sea-ice interaction; scintillation and electro-optical propagation in the atmospheric surface layer; fundamental turbulence issues such as Monin-Obukhov similarity theory, time series analysis, and measurement physics; technical writing.

It is with regret that we inform you that Ed Andreas passed away on 30 September 2015. We will miss him for his original and careful scientific thinking. He was a kind person and a classic gentlemen in all regards. If you need to contact someone at NWRA, please email Joan Oltman-Shay, President of NWRA at j.oltman.shay@nwra.com or call 425 556 9055 x0.

Research interests: Atmospheric Sciences. The Arctic Oscillation, stratosphere-troposphere coupling, and propagation of planetary-scale waves in the troposphere and stratosphere.

Research interests: Solar physics, local helioseismology, solar interior.

Research interests: Inertia-gravity waves. Geophysical turbulence. Interaction between balanced and unbalanced motions. Mixed layer dynamics.

Research interests: Remote sensing of atmospheric gases and radiation from satellites. Radiative forcing of climate by greenhouse gases, cirrus clouds and relative humidity, detection of new airglow emissions, absorption of solar NIR by precipitating clouds.

Research interests: Research focus on Mesosphere and Lower Thermosphere (MLT) studies including modeling, simulation, and data fusion using Incoherent Scatter Radar (ISR) and Lidar. Interests include collisional plasma processes in the E-Region of the Ionosphere as well as meteoric smoke measurements and their relation to the Micrometeoric Input Function (MIF).

Research interests:
It is with great sadness that NWRA notes the death of Senior Scientist Dr. Juan Fontenla on January 11, 2018 while surrounded by his family. Juan was enjoying warmer climates in South Carolina in the first stages of retirement, but had been still active in NWRA projects.
Juan was a prominent and widely respected solar physicist, specializing in the development and forecasting application of models of the solar spectral irradiance. He had a long and renowned international career marked by affiliations with both commercial and basic-research oriented institutions as well as numerous publications and collaborations. His passing was recently noted in SolarNews at http://spd.stanford.edu//SolarNews/2018/20180201.html#section_oppenheim.
Condolences for his family and friends may be left at https://cannonbyrd.com/john-manuel-fontenla/
His creative and warm presence will be greatly missed.

Research interests: Near-Earth Space Science: ionospheric physics (satellite experiments & radiowave tomographic imaging) and radio propagation (scintillation observations & modeling).

Research interests: Climate variability from inter-annual to centennial time scales, water and energy cycle in a changing climate. Global dimming and brightening and its implications for climate including the water and carbon cycles. In-situ measurements of air pollution and radiative properties in urban and suburban environments on board hot-air balloons.

Research interests: Studies of clouds, water vapor, and radiation in the tropical upper troposphere and lower stratosphere.

Research interests: Computer modeling of hydrodynamic phenomena, including vortex evolution, internal wave propagation, and turbulent dissipation; validation of computer models by comparison of computer results with observational data; processing and visualization of scientific data; diversified computing experience: various micro, mini, main-frame, and super computer systems.

Research interests: Data acquisition systems, data analysis (time and frequency domain), industrial process control (stability analysis and hardware selection), analog/digital circuit design, electro-optical systems, microprocessor system design, heat-exchanger design.

Research interests: I am using the WRF model to study convectively induced gravity waves.

Research interests: I study the propagation of optical waves through turbulence in the atmospheric boundary layer, with a focus on developing statistical estimators for the remote retrieval of atmospheric variables such as the horizontal wind velocity.

Research interests: Research areas: Tsunami dynamics; numerical modeling; time-series analysis