Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1141-1160 of 5084
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Airborne Spectral Polarimeter for Ocean Wave Research
(American Meteorological Society, 2015)he Airborne Remote Optical Spotlight System (AROSS) family of sensors consists of airborne imaging systems that provide passive, high-dynamic range, time series image data and has been used successfully to characterize ... -
High-Resolution Spectral Estimation of HF Radar Data for Current Measurement Applications
(American Meteorological Society, 2015)his paper presents a comparative study of high-resolution methods for high-frequency radar current mapping. A z-domain transformation and auxiliary z-domain manipulation of the autoregressive method is proposed for this ... -
Comparison of Meteorological Radar Signal Detectability with Noncoherent and Spectral-Based Processing
(American Meteorological Society, 2015)etection of meteorological radar signals is often carried out using power averaging with noise subtraction either in the time domain or the spectral domain. This paper considers the relative signal processing gain of these ... -
Introducing an Approach for Extracting Temperature from Aircraft GNSS and Pressure Altitude Reports in ADS-B Messages
(American Meteorological Society, 2015)ecently work has been conducted in using routine air traffic management (ATM) data from aircraft to derive meteorological observations (de Haan; de Haan and Stoffelen). The paper at hand introduces and provides an initial ... -
The Impact of Range-Oversampling Processing on Tornado Velocity Signatures Obtained from WSR-88D Superresolution Data
(American Meteorological Society, 2015)SR-88D superresolution data are produced with finer range and azimuth sampling and improved azimuthal resolution as a result of a narrower effective antenna beamwidth. These characteristics afford improved detectability ... -
Results from the NASA GSFC and LaRC Ozone Lidar Intercomparison: New Mobile Tools for Atmospheric Research
(American Meteorological Society, 2015)uring a 2-week period in May 2014, the National Aeronautics and Space Administration (NASA) Goddard Space Flight Center Tropospheric Ozone Differential Absorption Lidar (GSFC TROPOZ DIAL) was situated near the NASA Langley ... -
Kalman Filtering–Based Probabilistic Nowcasting of Object-Oriented Tracked Convective Storms
(American Meteorological Society, 2015)he weather radar?based object-oriented convective storm tracking is a standard approach for analyzing and nowcasting convective storms. However, the majority of current storm-tracking algorithms provide nowcasts only in a ... -
Surface Wave Measurements from Subsurface Floats
(American Meteorological Society, 2015)ressure gradient measurements on a subsurface Lagrangian float are used to measure the spectrum of surface waves for 100 days of measurements at Ocean Weather Station Papa. Along Lagrangian trajectories of surface waves, ... -
Methods to Calculate Precipitation from Weighing-Bucket Gauges with Redundant Depth Measurements
(American Meteorological Society, 2015)he U.S. Climate Reference Network (USCRN) monitors precipitation using a well-shielded Geonor T-200B gauge. To ensure the quality and continuity of the data record, the USCRN adopted an innovative approach to monitor ... -
Aerosol Optical Thickness Measurement with Elevation-Scanning Lidar
(American Meteorological Society, 2015)igh-accuracy measurement of aerosol optical thickness (AOT) τa with an elevation-scanning lidar is demonstrated and the results are compared with a collocated Cimel 318 sun photometer. Linear regression of the time-coincident ... -
Validation of Dual-Doppler Wind Profiles with in situ Anemometry
(American Meteorological Society, 2015)ypical methods used to acquire wind profiles from Doppler radar measurements rely on plan position indicator (PPI) scans being performed at multiple elevation angles to utilize the velocity?azimuth display technique or to ... -
Automated Retrieval of Cloud and Aerosol Properties from the ARM Raman Lidar. Part II: Extinction
(American Meteorological Society, 2015)feature detection and extinction retrieval (FEX) algorithm for the Atmospheric Radiation Measurement Program?s (ARM) Raman lidar (RL) has been developed. Presented here is Part II of the FEX algorithm: the retrieval of ... -
Evaluation of Drifter Salinities in the Subtropical North Atlantic
(American Meteorological Society, 2014)alinity measurements from drifters constitute an important in situ dataset for the calibration and validation of the sea surface salinity satellite missions. A total of 114 satellite-tracked salinity drifters were deployed ... -
Influences of the Choice of Climatology on Ocean Heat Content Estimation
(American Meteorological Society, 2014)he choice of climatology is an essential step in calculating the key climate indicators, such as historical ocean heat content (OHC) change. The anomaly field is required during the calculation and is obtained by subtracting ... -
A Marine Autonomous Surface Craft for Long-Duration, Spatially Explicit, Multidisciplinary Water Column Sampling in Coastal and Estuarine Systems
(American Meteorological Society, 2014)he Surveying Coastal Ocean Autonomous Profiler (SCOAP) is a large catamaran marine autonomous surface craft (MASC) for unattended weeks-long, spatially explicit, multidisciplinary oceanographic water column profile sampling ... -
Evaluation of Humidity Correction Methods for Vaisala RS92 Tropical Sounding Data
(American Meteorological Society, 2015)his study examines the DigiCORA and Global Climate Observing System Reference Upper-Air Network (GRUAN) humidity corrections of Vaisala RS92 radiosondes at three sites over the tropical Indian Ocean and surrounding areas ... -
Predictability of the Loop Current Variation and Eddy Shedding Process in the Gulf of Mexico Using an Artificial Neural Network Approach
(American Meteorological Society, 2015)novel approach based on an artificial neural network was used to forecast sea surface height (SSH) in the Gulf of Mexico (GoM) in order to predict Loop Current variation and its eddy shedding process. The empirical orthogonal ... -
On Shipboard Marine X-Band Radar Near-Surface Current ‘‘Calibration’’
(American Meteorological Society, 2015)he ocean wave signatures within conventional noncoherent marine X-band radar (MR) image sequences can be used to derive near-surface current information. On ships, an accurate near-real-time record of the near-surface ... -
Observational Perspectives from U.S. Climate Reference Network (USCRN) and Cooperative Observer Program (COOP) Network: Temperature and Precipitation Comparison
(American Meteorological Society, 2015)he U.S. Cooperative Observer Program (COOP) network was formed in the early 1890s to provide daily observations of temperature and precipitation. However, manual observations from naturally aspirated temperature sensors ... -
Adjoint-Free Variational Data Assimilation into a Regional Wave Model
(American Meteorological Society, 2015)variational data assimilation algorithm is developed for the ocean wave prediction model [Wave Model (WAM)]. The algorithm employs the adjoint-free technique and was tested in a series of data assimilation experiments with ...