Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 3581-3600 of 5084
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Using PPCA to Estimate EOFs in the Presence of Missing Values
(American Meteorological Society, 2004)One of the problems encountered when using satellite-derived sea surface temperature (SST) data is the impossibility of retrieving data where the ocean surface is obscured by cloud. Empirical orthogonal function (EOF) ... -
Sidescan Sonar Imagery of the Winter Marginal Ice Zone Obtained from an AUV
(American Meteorological Society, 2004)The first Arctic under-ice sidescan sonar imagery from an autonomous underwater vehicle (AUV) has been obtained in the winter marginal ice zone of the East Greenland Current at 73°00?N, 11°47?W, using a Maridan Martin 150 ... -
Accuracy of a Pulse-Coherent Acoustic Doppler Profiler in a Wave-Dominated Flow
(American Meteorological Society, 2004)The accuracy of velocities measured by a pulse-coherent acoustic Doppler profiler (PCADP) in the bottom boundary layer of a wave-dominated inner-shelf environment is evaluated. The downward-looking PCADP measured velocities ... -
Surface Salinity Retrieved from SMOS Measurements over the Global Ocean: Imprecisions Due to Sea Surface Roughness and Temperature Uncertainties
(American Meteorological Society, 2004)The Soil Moisture and Ocean Salinity (SMOS) mission recently led by the European Space Agency (ESA) intends to monitor soil moisture and sea surface salinity (SSS). Since the sensitivity of radiometric L-band signal to SSS ... -
Assessing and Improving the Quality of Unattended Radiation Observations in Antarctica
(American Meteorological Society, 2004)The quality of atmospheric radiation measurements made at automatic weather stations (AWSs) in Antarctica is assessed. The AWSs are placed on the coastal ice shelf in the katabatic wind zone and on the high Antarctic ... -
An Optical Array Instrument for Shape and Fall Velocity Measurements of Hydrometeors
(American Meteorological Society, 2004)A ground-based optical array instrument for the measurement of shapes, sizes, and fall velocities of freely falling hydrometeors is presented. The instrument, the Hydrometeor Velocity and Shape Detector (HVSD), is designed ... -
Comparison of Wind Monitoring Systems. Pad II: Doppley. Sodars
(American Meteorological Society, 1986)Measurements of wind speed, wind direction, and the vertical component of turbulence, from four different commercially available Doppler sodars, are compared with similar measurements from in situ sensors on a 300 m ... -
Design, Implementation, and Demonstration of a Staggered PRT Algorithm for the WSR-88D
(American Meteorological Society, 2004)This paper describes the implementation of the staggered pulse repetition time (PRT) technique on NOAA's research and development WSR-88D in Norman, Oklahoma. The prototype algorithm incorporates a novel rule for the correct ... -
A 94-GHz Cloud Radar System on a NASA High-Altitude ER-2 Aircraft
(American Meteorological Society, 2004)The 94-GHz (W band) Cloud Radar System (CRS) has been developed and flown on a NASA ER-2 high-altitude (20 km) aircraft. The CRS is a fully coherent, polarimetric Doppler radar that is capable of detecting clouds and ... -
SeaWinds Validation: Effect of Rain as Observed by East Coast Radars
(American Meteorological Society, 2004)To examine the accuracy of the SeaWinds scatterometer wind data and rain flags, and how this accuracy depends on ground-based radar-estimated rain rate, SeaWinds data, WSI NEXRAD precipitation rates, and selected Eta ... -
A Dynamic GIS–Multicriteria Technique for Siting the NASA–Clark Atlanta Urban Rain Gauge Network
(American Meteorological Society, 2004)Because Atlanta, Georgia, is a model of rapid transition from forest/agriculture land use to urbanization, NASA and other agencies have initiated programs to identify and understand how urban heat islands (UHIs) impact the ... -
Assimilating Coherent Doppler Lidar Measurements into a Model of the Atmospheric Boundary Layer. Part I: Algorithm Development and Sensitivity to Measurement Error
(American Meteorological Society, 2004)A four-dimensional variational data assimilation (4DVAR) algorithm for retrieval of spatially and temporally resolved velocity and thermodynamic fields within the atmospheric boundary layer (ABL) is described and applied ... -
Development and Validation of a Time-Lag Correction for Vaisala Radiosonde Humidity Measurements
(American Meteorological Society, 2004)This study presents a method of improving the accuracy of relative humidity (RH) measurements from Vaisala RS80 and RS90 radiosondes by applying sensor-based corrections for well-understood sources of measurement error. ... -
CORRIGENDUM
(American Meteorological Society, 2004) -
Inversion of Marine Radar Images for Surface Wave Analysis
(American Meteorological Society, 2004)A method to estimate sea surface elevation maps from marine radar image sequences is presented. This method is the extension of an existing inverse modeling technique to derive wave spectra from marine radar images, which ... -
Sea Surface Temperature of the Bay of Bengal Derived from the TRMM Microwave Imager
(American Meteorological Society, 2004)The Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) with the capability of measuring sea surface temperature (SST) in the presence of clouds, has been providing an unprecedented view of tropical basin-scale ... -
Comparison of Wind Monitoring Systems. Part I: In Situ Sensors
(American Meteorological Society, 1986)It has recently become clear through advances in both theoretical and experimental meteorology, that improvements in modeling the transport and dispersion of pollutants will require on-site measurements of the atmosphere. ... -
Reconstruction of Monthly Mean Oceanic Sea Level Pressure Based on COADS and Station Data (1854–1997)
(American Meteorological Society, 2004)An extended reconstruction of monthly mean oceanic historical sea level pressure (SLP) based on Comprehensive Ocean?Atmosphere Data Set (COADS) release-2 observations is produced for the 1854?1997 period. The COADS data ... -
Evaluating Radial Current Measurements from CODAR High-Frequency Radars with Moored Current Meters
(American Meteorological Society, 2004)The performance of a network of five CODAR (Coastal Ocean Dynamics Application Radar) SeaSonde high-frequency (HF) radars, broadcasting near 13 MHz and using the Multiple Signal Classification (MUSIC) algorithm for direction ... -
A Practical, Hybrid Model for Predicting the Trajectories of Near-Surface Ocean Drifters
(American Meteorological Society, 2004)A hybrid Lagrangian?Eulerian model for calculating the trajectories of near-surface drifters in the ocean is developed in this study. The model employs climatological, near-surface currents computed from a spline fit of ...