Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1001-1020 of 5084
-
Improved AIRS Temperature and Moisture Soundings with Local A Priori Information for the 1DVAR Method
(American Meteorological Society, 2017)moving-window regression technique was developed for obtaining better a priori information for one-dimensional variational (1DVAR) physical retrievals. Using this technique regression coefficients were obtained for a ... -
Measurement of Antenna Patterns for Oceanographic Radars Using Aerial Drones
(American Meteorological Society, 2017)new method is described employing small drone aircraft for antenna pattern measurements (APMs) of high-frequency (HF) oceanographic radars used for observing ocean surface currents. Previous studies have shown that accurate ... -
Evaluating a Lithium-Seawater Battery on Gliders
(American Meteorological Society, 2016)eutral-buoyancy vehicles demand high density energy sources and lithium is light with high oxidation energy. PolyPlus Battery Company has developed a prototype lithium-seawater battery that is attractive for powering ... -
Improved Detection of the First Order Region for Direction Finding HF Radars using Image Processing Techniques
(American Meteorological Society, 2017)or direction-finding high frequency (HF) radar systems, the correct separation of backscattered spectral energy due to Bragg resonant waves from that due to more complex double-scattering represents a critical first step ... -
Submesoscale Eddies in the Taiwan Strait Observed by High-Frequency Radars: Detection Algorithms and Eddy Properties
(American Meteorological Society, 2017)his study compared the efficiencies of two widely used automatic eddy detection algorithms?that is, the winding-angle (WA) method and the vector geometry (VG) method?and investigated the submesoscale eddy properties using ... -
Response to “Comment on ”Using an ADCP to estimate turbulent kinetic energy dissipation rate in sheltered coastal waters“ by A.D. Greene, P.J. Hendricks, and M.C. Gregg” by Ann E. Gargett
(American Meteorological Society, 2017)his note is a comment in response to Gargett (2016) which argues that a large-eddy estimate of turbulent dissipation rate using a horizontal length scale with a vertical velocity estimate, as in Greene et al. (2015), is a ... -
TURBULENCE MEASUREMENTS FROM 5-BEAM ACOUSTIC DOPPLER CURRENT PROFILERS
(American Meteorological Society, 2017)wo new 5-beam Acoustic Doppler Current Profilers, the Nortek Signature 1000 AD2CP and the Teledyne RDI Sentinel V50, are demonstrated to measure turbulence at two energetic tidal channels within Puget Sound, WA, USA. The ... -
Impact Assessment of Himawari-8 AHI Data Assimilation in NCEP GDAS/GFS with GSI
(American Meteorological Society, 2017)s the first of the next-generation geostationary meteorological satellites, Himawari-8 was successfully launched in October 2014 by the Japan Meteorological Agency (JMA) and placed over the western Pacific Ocean domain at ... -
Rain Evaporation Rate Estimates from Dual-Wavelength Lidar Measurements and Intercomparison against a Model Analytical Solution
(American Meteorological Society, 2017)ain evaporation, while significantly contributing to moisture and heat cloud budgets, is a still poorly understood process with few measurements presently available. Multiwavelength lidars, widely employed in aerosols and ... -
A New Inversion Method to Obtain Upper-Ocean Current-Depth Profiles Using X-Band Observations of Deep-Water Waves
(American Meteorological Society, 2017)new method for estimating current-depth profiles from observations of wavenumber-dependent Doppler shifts of the overlying ocean wave field is presented. Consecutive scans of marine X-band backscatter provide wave field ... -
A Dynamically Consistent Reconstruction of Ocean Temperature
(American Meteorological Society, 2017)his paper provides a spectral optimal gridding (SOG) method to make a dynamically consistent reconstruction of water temperature for the global ocean at different depth levels. The dynamical consistency is achieved by using ... -
Retrieving Fall Streaks within Cloud Systems Using Doppler Radar
(American Meteorological Society, 2017)he interaction of ice crystals with supercooled liquid droplets in mixed-phase clouds leads to an enhanced growth of ice particles. However, such processes are still not clearly understood although they are important ... -
An Acoustic Tomography Technique for Concurrently Observing the Structure of the Atmosphere and Water Bodies
(American Meteorological Society, 2016)he opacity of water to radio waves means there are few, if any, techniques for remotely sensing it and the atmosphere concurrently. However, both these media are transparent to low-frequency sound (<300 Hz), which makes ... -
Cloud-Base Height Estimation from VIIRS. Part II: A Statistical Algorithm Based on A-Train Satellite Data
(American Meteorological Society, 2017)nowledge of cloud-base height (CBH) is important to describe cloud radiative feedbacks in numerical models and is of practical relevance to the aviation community. Whereas satellite remote sensing with passive radiometers ... -
Cloud-Base Height Estimation from VIIRS. Part I: Operational Algorithm Validation against CloudSat
(American Meteorological Society, 2017)he operational VIIRS cloud-base height (CBH) product from the Suomi?National Polar-Orbiting Partnership (SNPP) satellite is compared against observations of CBH from the cloud profiling radar (CPR) on board CloudSat. Because ... -
Corrigendum
(American Meteorological Society, 2016)n error in a recent analysis of the sensitivity of retrievals of Cloud?Aerosol Lidar with Orthogonal Polarization (CALIOP) particulate optical properties to errors in various input parameters is described. This error was ... -
Characterization of Bias of Advanced Himawari Imager Infrared Observations from NWP Background Simulations Using CRTM and RTTOV
(American Meteorological Society, 2016)tarting in 2014, the new generation of Japanese geostationary meteorological satellites carries an Advanced Himawari Imager (AHI) to provide the observations of visible, near infrared, and infrared with much improved spatial ... -
Corrigendum
(American Meteorological Society, 2016) -
Staggered-PRT Sequences for Doppler Weather Radars. Part II: Ground Clutter Mitigation on the NEXRAD Network Using the CLEAN-AP Filter
(American Meteorological Society, 2017)he staggered?pulse repetition time (SPRT) technique has been shown to be effective at mitigating range and velocity ambiguities; however, mitigation of ground clutter contamination for SPRT sequences has proven to be more ... -
An Expendable Microstructure Profiler for Deep Ocean Measurements
(American Meteorological Society, 2016)easurements of turbulence in the deep ocean, particularly close to the bottom, are extremely sparse because of the difficulty and operational risk of obtaining deep profiles near the seafloor. A newly developed expendable ...