US Department of Commerce/National Oceanic and Atmospheric Administration (NOAA), PGAS, Procurement Operations Division, 1325 East West Highway, Station 4301, Silver Spring, MD 20910-3283

66 -- REAL-TIME ACOUSTC DOPPLER CURRENT PROFILER (ADCP) SOL 52-DGNC-5-00170 DUE 080395 POC Eleanor E. Kaul, Contract Specialist or Gregory N. Smith, Contracting Officer, 301/713-0823 or fax 301/713-0806 The National Oceanic & Atmospheric Administration (NOAA) has a requirement for the procurement of real-time Acoustic Doppler Current Profilers (ADCPs), qty 2; 10 MB internal memory module, qty 2; and pressure sensor, qty 2. These ADCPs shall be used as part of a Physical Oceanographic Real-Time System (PORTS) to be installed in Galveston Bay, Texas. The following are the minimum performance specifications required to meet the National Ocean Service (NOS) program requirements. The ADCPs shall be capable of providing one (1) meter vertical depth cell resolution over 80% of the water column in depth ranges of 10 to 20 meters. This specification shall consider depth loss due to acoustic blanking range and acoustic side lobe interference. The estimated uncertainity of a 6-minute ensemble of the horizontal components of current velocity for each depth cell shall be + or - 3cm/s. The instruments must operate from DC power, 30 volts or less, with an average power requirement of less than 3 watts. The instruments must also have an integrated compass, tilt sensor, pressure sensor, and a temperature sensor. The output data stream shall provide an emsemble average based on a user selectable number of pings in a binary data format which is stored in internal memory and transmitted at selected intervales. Communications with the instrument shall be user selectable serial RS232, RS422, and RS485 format. The ADCPs shall be capable of operating with a standard 7-conductor well logging cable for both power and signal. The instrument's electronics must be housed in a molded composite plastic pressure housing. The external height of the housing shall not exceed 36 cm because the instrument shall be deployed in a low profile, trawler resistant bottom platform. The maximum weight of the instrument shall not exceed 15 kg to facilitate diver retrieval. The instrument's measurement technique employed by the ADCP must be one that has proven performance and reliability. All responsible sources interested in this procurement can request a copy of the solicitation. See Note #1 regarding Small Business Set-Aside. (0172)

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