Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 181-200 of 5084
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Optimizing Spatial Quality Control for a Dense Network of Meteorological Stations
(American Meteorological Society, 2022)Crowdsourced meteorological observations are becoming more prevalent and in some countries their spatial resolution already far exceeds that of traditional networks. However, due to the larger uncertainty associated with ... -
Selection Optimal Method of Evaporation Duct Model Based on Sensitivity Analysis
(American Meteorological Society, 2022)The evaporation duct is an abnormal refractive phenomenon with wide distribution and frequency occurrence at the boundary between the atmosphere and the ocean, which directly affects electromagnetic wave propagation. In ... -
Comparison of Desroziers and Three-Cornered Hat Methods for Estimating COSMIC-2 Bending Angle Uncertainties
(American Meteorological Society, 2022)We compare two seemingly different methods of estimating random error statistics (uncertainties) of observations, the three-cornered hat (3CH) method and Desroziers method, and show several examples of estimated uncertainties ... -
Tilt Error in NDBC Ocean Wave Height Records
(American Meteorological Society, 2022)We identify and characterize an error in the National Data Buoy Center (NDBC) wave records due to the sustained tilt of a buoy under high winds. We use a standard, operational 3-m aluminum discus buoy from NDBC with two ... -
Stratospheric Observations of Corona Current from Loon’s Superpressure Balloons
(American Meteorological Society, 2022)Loon LLC collected 794 000 h of corona current observations between 15 and ∼20 km above sea level with time resolution between 1 and 30 min. We are publicly releasing this dataset to enable the research community’s ... -
An Accurate Wind Retrieval Method Based on Observing Hydrogen Balloons with Multi-Theodolite Measurements
(American Meteorological Society, 2022)The hydrogen balloon is widely used for wind sensing by tracking it with optical theodolites. The traditional theodolite observation (single- and double-theodolite) methods assume that the balloon is a perfect tracer of ... -
Vertical Wavelengths of Downward Phase Propagating Gravity Waves Determined by Vertical Fluctuation of Idealized Radiosonde Balloons
(American Meteorological Society, 2022)This paper investigates the limitation in calculating the vertical wavelength of downward phase propagating gravity waves from the vertical fluctuation of idealized radiosonde balloons in a homogeneous background environment. ... -
The Statistics of Oceanic Turbulence Measurements. Part II: Shear Spectra and a New Spectral Model
(American Meteorological Society, 2022)This manuscript provides (i) the statistical uncertainty of a shear spectrum and (ii) a new universal shear spectrum, and (iii) shows how these are combined to quantify the quality of a shear spectrum. The data from four ... -
The Statistics of Oceanic Turbulence Measurements. Part I: Shear Variance and Dissipation Rates
(American Meteorological Society, 2022)An empirically derived statistic is used to estimate the confidence interval of a dissipation estimate that uses a finite amount of shear data. Four collocated shear probes, mounted on a bottom anchored float, are used to ... -
Updates on CYGNSS Ocean Surface Wind Validation in the Tropics
(American Meteorological Society, 2022)Global Navigation Satellite System Reflectometry (GNSS-R)-based wind retrieval techniques use the global positioning system (GPS) signals scattered from the ocean surface in the forward direction, and can potentially work ... -
Compact Continuous Wave Radar for Water Level Monitoring
(American Meteorological Society, 2022)There is a demand for noncontact, high-accuracy, high-spatial-resolution, wireless sensing technologies for various water level and coastal monitoring applications. This paper presents a low-cost, compact, easily configurable ... -
Assessment of Two Stochastic Cloud Subcolumn Generators Using Observed Fields of Vertically Resolved Cloud Extinction
(American Meteorological Society, 2022)We evaluate two stochastic subcolumn generators used in GCMs to emulate subgrid cloud variability enabling comparisons with satellite observations and simulations of certain physical processes. Our evaluation necessitated ... -
Sea Ice Motion Vector Retrievals from AMSR2 89-GHz Data: Validation Algorithm with Simultaneous Multichannel Observations
(American Meteorological Society, 2022)In retrievals of sea ice motion vectors (SIMVs) based on passive microwave observations, the use of the high-resolution 89-GHz channel of the Advanced Microwave Scanning Radiometer 2 (AMSR2) has the advantage of enhancing ... -
Identification and Removal of Aircraft Clutter to Improve Wind Velocity Measurement Made with Chung-Li VHF Radar
(American Meteorological Society, 2022)In this study, a data processing method based on the empirical mode decomposition (EMD) of Hilbert–Huang transform (HHT) is developed at Chung-Li VHF radar to identify and remove the aircraft clutter for improving the ... -
Retrieval and Evaluation of Ice Water Content from the Airborne Wyoming Cloud Radar in Orographic Wintertime Clouds during SNOWIE
(American Meteorological Society, 2022)As part of the analysis following the Seeded and Natural Orographic Wintertime Storms (SNOWIE) project, the ice water content (IWC) in ice and mixed-phase clouds is retrieved from airborne Wyoming Cloud Radar (WCR) ... -
A New Objective Typhoon Location Algorithm Considering a Perturbation Factor Based on FY-4A Brightness Temperature Data
(American Meteorological Society, 2022)In this paper, a new objective typhoon positioning algorithm was proposed. The algorithm uses L1 12-channel far-infrared data of the -
Comparison of Optical Flow Derivation Techniques for Retrieving Tropospheric Winds from Satellite Image Sequences
(American Meteorological Society, 2022)This study introduces a validation technique for quantitative comparison of algorithms that retrieve winds from passive detection of cloud- and water vapor–drift motions, also known as atmospheric motion vectors (AMVs). ... -
Potential and Limitations of a Commercial Broadband Echo Sounder for Remote Observations of Turbulent Mixing
(American Meteorological Society, 2022)Stratified oceanic turbulence is strongly intermittent in time and space, and therefore generally underresolved by currently available in situ observational approaches. A promising tool to at least partly overcome this ... -
Adaptive Variable Threshold Event-Triggered Control for Trajectory Tracking of Autonomous Underwater Vehicles with Actuator Saturation
(American Meteorological Society, 2022)This article develops a novel event-triggered sliding mode control (ETSMC) approach with variable threshold to deal with trajectory tracking matters of autonomous underwater vehicles (AUVs) accompanied by actuator saturation ... -
Automated Quality Control of AERONET-OC LWN Data
(American Meteorological Society, 2022)Quality control (QC) practices are a fundamental requirement for any measurement program targeting the delivery of high-quality data. In agreement with such a need, the Ocean Color component of the Aerosol Robotic Network ...