1.02e SOR_RadarWindProfiler.docx

Statement of Requirements High Resolution Profiler System – Boundary Layer (HRPS‑BL) LAP3000 Radar Wind Profiler and RASS Department of Meteorology Naval Postgraduate School

1.0 Background/Introduction:

The Naval Postgraduate School (NPS) Meteorology Department (MR) Marine Atmospheric Measurements Laboratory (MAML) collects real‑time weather observations in the Monterey Coastal Region to support student coursework and graduate thesis research. High‑resolution wind and thermodynamic profiling are essential for analyzing meteorological processes within the marine boundary layer and the region’s complex coastal terrain.

Historically, these observations have been obtained using a combination of profiling technologies capable of measuring wind and virtual temperature (Tv) from approximately 30 meters to 5 kilometers with logarithmic vertical sampling. The High Resolution Profiler System – Boundary Layer (HRPS‑BL) concept includes three complementary subsystems: a radar wind profiler (RWP) profiler and a radio acoustic sounding system (RASS). These instruments provide overlapping and redundant capabilities that allow continuous data collection even under challenging atmospheric conditions such as low turbulence, precipitation, or elevated ambient noise MAML currently operates a Radian LAP‑3000 915‑MHz RWP‑RASS and is experiencing performance issues and malfunctions due to aging hardware, resulting in increasing gaps in data availability.

Although the broader HRPS‑BL concept includes multiple subsystems, this procurement action is solely for the acquisition of a direct replacement Radar Wind Profiler (RWP) and RASS. The RWP is the highest‑priority component requiring immediate replacement to ensure that MAML can continue providing high‑resolution wind profiling data essential for student research, instructional support, and ongoing scientific projects.

2.0 Requested Delivery Date: 8/3/2026

3.0 Minimal Technical Requirements/Salient Characteristics:

(If known) Description

1. Direct replacement LAP-3000 Profiler, NOAA-licensed technology

2. Operating Frequency: 915 MHz (ISM)

3. RF Power Output: 800 W Peak

4. Power Input: 120VAC (Power < 1.5kW)

5. Lowest Gate Height: no greater than 100 m

6. Minimum range gate resolution: < 50 m

7. Wind Accuracy: no greater than 1 m/s

8. Horizontal Wind Range: -100 to 100 m/s

9. Software:

a. Software license is not locked to single computer; i.e. multiple computers can use software at the same time.

b. Software is able to post-process and re-average raw FFT spectrum data to recalculate wind data.

c. All data processing and display module are included and available, i.e. no software features are locked from the user.

d. Includes real-time plotting software to display user-selectable output data.

e. Time resolution of 20 min or less. Increase averaging period to improve data quality.

10. Hardware Included: Antenna Unit: 4 Panels, Radar Processor, Modulator, IF, and Interface Unit (MII), Power Amplifier Unit, RF Converter Unit, Circulator Unit, Phase Shifter Unit, Power Supply Unit 100-240 VAC, Cable Set, Equipment Rack, Antenna Stand, Radome, Clutter Fence, Ground Mount Kit, Operation Software, User Manual

1. Operating frequency (acoustic): 2 - 4 kHz

2. Minimum height: < 150 m

3. Range Gate resolution: < 50m

4. Power input: 120VAC

5. Virtual temperature accuracy: no greater than 1 degC

6. Hardware directly couples with RWP

7. Included Hardware: 4 Acoustic Sources, Audio Amplifier Unit, Cable Set

Crate

Shipping and Handling

NPS Technical POC: Ryan Yamaguchi ryamaguc@nps.edu, 831-656-7645 NPS POC for Acceptance of Deliverables: Same as above NPS Financial POC: Matthew Heller, mheller@nps.edu, 831-656-6984

Delivery Instructions:

Deliveries shall be made to the NPS Warehouse Monday through Friday between the hours of 0700-1130 and 1230-1600 PST. Make sure to include the USG Contract Number on the package and/or packaging slip for ease of reference and processing.

NPS Warehouse 1988 Lake Del Monte Drive -- Building 349 Monterey, CA 93943

Delivery Contact Information:

Warehouse – (831)656-2256 Customer – Ryan Yamaguchi, 831-682-5159 Office of Contracting and Logistics Management Revised 25 April 2022