Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 2021-2040 of 5084
-
Measurements of the Total Water Content of Cirrus Clouds. Part I: Instrument Details and Calibration
(American Meteorological Society, 2006)This paper describes an instrument designed to measure the sum of gas phase and solid phase water, or total water, in cirrus clouds, and to be mounted in a pallet in the underbelly of the NASA WB-57 research aircraft. The ... -
One-Day Wave Forecasts Based on Artificial Neural Networks
(American Meteorological Society, 2006)Sophisticated wave models like the Wave Model (WAM) and Simulating Waves Nearshore (SWAN)/WAVEWATCH are used nowadays along with atmospheric models to produce forecasts of ocean wave conditions. These models are generally ... -
Comparison of Observed and Modeled Drifter Trajectories in Coastal Regions: An Improvement through Adjustments for Observed Drifter Slip and Errors in Wind Fields
(American Meteorological Society, 2006)Lagrangian particle tracking using three-dimensional (3D) numerical modeling approaches has become an important tool in coastal oceanography. In this note, an approach is described that can reduce the difference between ... -
Measurements of the Total Water Content of Cirrus Clouds. Part II: Instrument Performance and Validation
(American Meteorological Society, 2006)This paper describes the performance and in-flight validation of an instrument mounted in a pallet on the NASA WB-57 research aircraft that measures the sum of gas phase and solid phase water, or total water, in cirrus ... -
Considerations on Open Boundary Conditions for Regional and Coastal Ocean Models
(American Meteorological Society, 2006)This paper reviews the usual open boundary conditions (OBCs) for coastal ocean models and proposes a complete set of open boundaries based on stability criteria, on mass and energy conservation arguments, and on the ability ... -
The Measurement of the Sea Surface Temperature by Satellites from 1991 to 2005
(American Meteorological Society, 2006)A near-continuous series of global retrievals of sea surface temperature (SST) has been made from the Along-Track Scanning Radiometer (ATSR) series of instruments from 1991 to 2005. To analyze possible long-term trends in ... -
A Self-Contained Identification Scheme for Eddies in Drifter and Float Trajectories
(American Meteorological Society, 2006)It is becoming increasingly recognized that the eddy field plays an important?possibly dominating?role for oceanic motions in many aspects (e.g., transport of properties and risk assessment in the case of extreme events). ... -
The 2D-S (Stereo) Probe: Design and Preliminary Tests of a New Airborne, High-Speed, High-Resolution Particle Imaging Probe
(American Meteorological Society, 2006)The design, laboratory calibrations, and flight tests of a new optical imaging instrument, the two-dimensional stereo (2D-S) probe, are presented. Two orthogonal laser beams cross in the middle of the sample volume. Custom, ... -
A Daytime Complement to the Reverse Absorption Technique for Improved Automated Detection of Volcanic Ash
(American Meteorological Society, 2006)An automated volcanic cloud detection algorithm that utilizes four spectral channels (0.65, 3.75, 11, and 12 ?m) that are common among several satellite-based instruments is presented. The new algorithm is physically based ... -
Intercomparison of Water Vapor Data Measured with Lidar during IHOP_2002. Part I: Airborne to Ground-Based Lidar Systems and Comparisons with Chilled-Mirror Hygrometer Radiosondes
(American Meteorological Society, 2007)The water vapor data measured with airborne and ground-based lidar systems during the International H2O Project (IHOP_2002), which took place in the Southern Great Plains during 13 May?25 June 2002 were investigated. So ... -
Intercomparison of Water Vapor Data Measured with Lidar during IHOP_2002. Part II: Airborne-to-Airborne Systems
(American Meteorological Society, 2007)The dataset of the International H2O Project (IHOP_2002) gives the first opportunity for direct intercomparisons of airborne water vapor lidar systems and allows very important conclusions to be drawn for future field ... -
Shattering and Particle Interarrival Times Measured by Optical Array Probes in Ice Clouds
(American Meteorological Society, 2006)Optical array probes are one of the most important tools for determining the microphysical structure of clouds. It has been known for some time that the shattering of ice crystals on the housing of these probes can lead ... -
An Operational Triple-PRT Doppler Scheme for the French Radar Network
(American Meteorological Society, 2006)This paper presents the design and the test of an operational (staggered) triple-PRT (pulse repetition time) scheme that was implemented in July 2004 on the French operational C-band Trappes radar. The three interleaved ... -
The Gust-Front Detection and Wind-Shift Algorithms for the Terminal Doppler Weather Radar System
(American Meteorological Society, 1993)The Federal Aviation Administration's Terminal Doppler Weather Radar (TDWR) system was primarily designed to address the operational needs of pilots in the avoidance of low-altitude wind shears upon takeoff and landing at ... -
A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity
(American Meteorological Society, 2006)Over the last few years the use of weather radar data has become a fundamental part of various applications like rain-rate estimation, nowcasting of severe weather events, and assimilation into numerical weather prediction ... -
One-Lag Estimators for Cross-Polarization Measurements
(American Meteorological Society, 2006)Estimators of the linear depolarization ratio (LDR) and cross-polarization correlation coefficients (?xh) free from noise biases are devised. The estimators are based on the 1-lag correlation functions. The 1-lag estimators ... -
Retrieving Storm Electric Fields from Aircraft Field Mill Data. Part II: Applications
(American Meteorological Society, 2006)The Lagrange multiplier theory developed in Part I of this study is applied to complete a relative calibration of a Citation aircraft that is instrumented with six field mill sensors. When side constraints related to average ... -
A GPM Dual-Frequency Retrieval Algorithm: DSD Profile-Optimization Method
(American Meteorological Society, 2006)A new dual-frequency precipitation radar (DPR) will be included on the Global Precipitation Measurement (GPM) core satellite, which will succeed the highly successful Tropical Rainfall Measuring Mission (TRMM) satellite ... -
Entrainment and Transport in Idealized Three-Dimensional Gravity Current Simulation
(American Meteorological Society, 2006)A purely z-coordinate Dietrich/Center for Air Sea Technology (DieCAST) ocean model is applied to the Dynamics of Overflow Mixing and Entrainment (DOME) idealized bottom density current problem that is patterned after the ... -
A Fuzzy Logic Technique for Identifying Nonprecipitating Echoes in Radar Scans
(American Meteorological Society, 2006)Because echoes caused by nonmeteorological targets significantly affect radar scans, contaminated bins must be identified and eliminated before precipitation can be quantitatively estimated from radar measurements. Under ...