nsaxsaprsurC1.00

Name: X-SAPR Surveillance scan at Central Facility, Barrow AK - nsaxsaprsurC1.00
Published: 2011-06-24

Atmospheric Radiation Measurement (ARM) user facility. 2011, updated hourly. X-Band Scanning ARM Precipitation Radar (XSAPRSUR). 2011-06-24 to 2011-11-09, North Slope Alaska (NSA) Central Facility, Barrow AK (C1). Compiled by N. Bharadwaj, I. Lindenmaier, D. Nelson, B. Isom, J. Hardin, A. Matthews, T. Wendler and V. Castro. ARM Data Center. Data set accessed  at http://dx.doi.org/10.5439/1150306.

doi:http://dx.doi.org/10.5439/1150306

xsaprsur

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X-SAPR Surveillance scan (xsaprsur)

Browse Data

The X-band Scanning ARM Precipitation Radar (X-SAPR) is an X-band dual-polarization Doppler weather radar. The X-SAPR operates in a simultaneous transmit and receive (STAR) mode, meaning that the transmit signal is split so that power is transmitted on both horizontal and vertical polarizations at the same time. The X-SAPR transmitter is a 200 kW (peak power) magnetron. The receiver is based upon the Vaisala RVP-900 and runs Vaisala s IRIS software.

In addition to the first three Doppler moments (reflectivity, radial velocity, and spectra width), the X-SAPR also provides differential reflectivity, correlation coefficient, and specific differential phases. The dual-polarization variables enable estimates of rainfall rates and identification of precipitation types. At the Southern Great Plains site, three X-SAPRs surround the Central Facility, allowing the use of multi-Doppler velocity retrievals to estimate wind fields.

Measurements

Lag-0 co-polar correlation coefficient
Doppler spectral width
Reflectivity

Location

North Slope Alaska

Latitude: 71.323
Longitude: -156.609
Publication Date: 2011-06-24
Start Date: 2011-06-24
End Date: 2011-11-09
Last Updated: 2011-11-26