Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 801-820 of 5084
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Carbon Dioxide and Methane in the China Sea Shelf Boundary Layer Observed by Cavity Ring-Down Spectroscopy
(American Meteorological Society, 2017)AbstractHigh-accuracy continuous ship-based cavity ring-down spectroscopy was used to simultaneously measure the mixing ratios of the carbon dioxide and methane in the China Sea shelf boundary layer for the first time, ... -
Turbulence Measurements from Compliant Moorings. Part I: Motion Characterization
(American Meteorological Society, 2017)AbstractHigh-fidelity measurements of turbulence in the ocean have long been challenging to collect, in particular in the middle of the water column. In response, a measurement technique has been developed to deploy an ... -
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(American Meteorological Society, 2017)AbstractThe Lagrangian Analysis Tool (LAGRANTO) is adopted and applied to ECMWF?s latest ocean reanalysis. The primary motivation behind this study is to introduce and document LAGRANTO Ocean (LAGRANTO.ocean) and explore ... -
Evaluation of a Support Vector Machine–Based Single-Doppler Wind Retrieval Algorithm
(American Meteorological Society, 2017)AbstractWind retrieval algorithms are required for Doppler weather radars. In this article, a new wind retrieval algorithm of single-Doppler radar with a support vector machine (SVM) is analyzed and compared with the ... -
Remote Measurements of Tides and River Slope Using an Airborne Lidar Instrument
(American Meteorological Society, 2017)AbstractTides and river slope are fundamental characteristics of estuaries, but they are usually undersampled due to deficiencies in the spatial coverage of water level measurements. This study aims to address this issue ... -
Estimating Random Uncertainty in Airborne Flux Measurements over Alaskan Tundra: Update on the Flux Fragment Method
(American Meteorological Society, 2017)AbstractAirborne turbulence measurement gives a spatial distribution of air?surface fluxes that networks of fixed surface sites typically cannot capture. Much work has improved the accuracy of such measurements and the ... -
Characteristic Raindrop Size Retrievals from Measurements of Differences in Vertical Doppler Velocities at Ka- and W-Band Radar Frequencies
(American Meteorological Society, 2016)AbstractA Ka-band (~35 GHz) and W-band (~94 GHz) radar approach to retrieve profiles of characteristic raindrop sizes, such as mean mass-weighted drop diameters Dm, from measurements of the difference in the mean vertical ... -
Effectiveness of Using Multisatellite Wind Speed Estimates to Construct Hourly Wind Speed Datasets with Diurnal Variations
(American Meteorological Society, 2017)AbstractThis study used an optimum interpolation method (OIM) to construct a sea surface wind speed (SSW) dataset with hourly resolution based on merged wind speed analysis products from four satellites [AMSR-2, ASCAT, ... -
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(American Meteorological Society, 2017)AbstractA theoretical model is developed to describe how autonomous underwater vehicle (AUV)-based current measurements are influenced by a surface wave field. The model quantifies a quasi-Lagrangian, wave-induced velocity ... -
On the Definition of Marginal Ice Zone Width
(American Meteorological Society, 2017)AbstractSea ice features a dense inner pack ice zone surrounded by a marginal ice zone (MIZ) in which the sea ice properties are modified by interaction with the ice-free open ocean. The width of the MIZ is a fundamental ... -
Assessment of Radiometric Data from a Buoy in the St. Lawrence Estuary
(American Meteorological Society, 2017)AbstractFisheries and Oceans Canada maintains a network of scientific buoys in the St. Lawrence estuary and gulf. Among a suite of environmental parameters documented, the in-water upwelling radiance is measured using an ... -
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(American Meteorological Society, 2016)AbstractThe NASA Cyclone Global Navigation Satellite System (CYGNSS) was launched in late 2016. It will make available frequent ocean surface wind speed observations throughout the life cycle of tropical storms and hurricanes. ... -
Interpolation of Operational Radar Data to a Regular Cartesian Grid Exemplified by Munich’s Airport Radar Configuration
(American Meteorological Society, 2017)AbstractTwo methods for avoiding errors in the interpolation of operational radar data to a regular grid are presented. The issue is the interpolation of radial velocity and the subsequent estimation of horizontal wind ... -
A Quality Control Method for Wind Profiler Observations toward Assimilation Applications
(American Meteorological Society, 2017)AbstractA wind profiler network with a total of 65 profiling radar systems was operated by the China Meteorological Observation Center (MOC) of the China Meteorological Administration (CMA) until July 2015. In this study, ... -
Polar Fourier Transform Processing of Marine Radar Signals
(American Meteorological Society, 2016)AbstractThis paper describes a method of processing marine radar signals for the purpose of generating phase-resolved surface elevation maps as well as statistical measures of ocean surface wave fields. The method is well ... -
Dependence of 25-MHz HF Radar Working Range on Near-Surface Conductivity, Sea State, and Tides
(American Meteorological Society, 2016)AbstractA 1.6-yr time series of radial current velocity from a 25-MHz high-frequency radar system located near a coastal river plume is analyzed to determine how the working range varies in response to changing near-surface ... -
On Tidal Inference in the Diurnal Band
(American Meteorological Society, 2016)AbstractStandard methods of tidal inference should be revised to account for a known resonance that occurs mostly within the K1 tidal group in the diurnal band. The resonance arises from a free rotational mode of Earth ... -
Parallel Direct Solution of the Ensemble Square Root Kalman Filter Equations with Observation Principal Components
(American Meteorological Society, 2017)AbstractThe ensemble square root Kalman filter (ESRF) is a variant of the ensemble Kalman filter used with deterministic observations that includes a matrix square root to account for the uncertainty of the unperturbed ... -
Synthetic Subsurface Pressure Derived from Bottom Pressure and Tide Gauge Observations
(American Meteorological Society, 1994)Synthetic subsurface pressure (SSP) can be formed from tide gauge records and from bottom pressure measurements to provide a consistent and convenient basis for comparison of these two different types of observations. ... -
Real-Time Quality Control of Wave Observations in the North Sea
(American Meteorological Society, 1994)The use of ocean wave data in new data assimilation techniques prompted the development of a real-time quality control system for wave height and wave period observations. Over the North Sea, a relatively large number of ...