Loren Data Corp.

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COMMERCE BUSINESS DAILY ISSUE OF JULY 27,2000 PSA#2651

NOAA/Systems Acquisition Office (SAO), 1315 E. W. Highway, Mail Code SAOX2, Silver Spring, MD 20910

66 -- METEOROLOGICAL PARTICLE SENSOR SOL 52-SPNA-0-00081 DUE 090100 POC Donald Thompson, Contracting Officer, 301-713-2110 x 116 The NOAA Automated Surface Observing System (ASOS) program has a need for a commercial-off-the-shelf instrument, Meteorological Particle Sensor (MPS), capable of measuring particle sizes of falling liquid precipitation (drizzle). The instrument and associated equipment shall be suitable for installation in an outdoor environment with weather-tight enclosures, cables, and sensing elements. The ground-based instrument shall be capable of measuring particle sizes from 50 to 1000 micrometers in diameter. Additionally, the sensor shall measure the number density of particle sizes from 50 to 1000 micrometers in diameter. The sensor shall have a 50-micron particle size resolution. The sensor shall measure precipitation rates from 0.1 to 15 millimeters per hour with a resolution of 0.1 millimeters per hour. Precipitation rate and drop size distribution information will be updated once per minute. The sensor shall be capable of providing accurate drop size distribution and accumulation rate information at wind speeds ranging from calm to 15 meters per second. The Government desires to determine liquid water accumulation from these particles, with a one-minute temporal resolution. The instrument shall operate on single phase commercial power. The Government intends to purchase up to two commercial sensors which can meet the NWS MPS requirement. The sensors will be installed at the Sterling, Virginia NWS test site. Vendors may request a copy of the complete MPS requirement from the contact person within one week of CBD issuance and should respond on or before September 1, 2000. Interested parties should send a request for the MPS requirement to Annette E. Stevens, 1325 East-West Highway, Mail Code SAOx2, Workstation 4347, Silver Spring, Maryland 20910, labeled "ASOS Meteorological Particle Sensor." Posted 07/24/00 (W-SN478129). (0206)

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