Attachment I TRH SOW.pdf

ASOS TEMPERATURE/RELATIVE HUMIDITY (TRH)

STATEMENT OF WORK

For the

Procurement

Of

Temperature and Relative Humidity (TRH) Sensor

Final

April 14, 2021

DEPARTMENT OF COMMERCE

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

NATIONAL WEATHER SERVICE

MAINTENANCE, LOGISTICS & ACQUISITION, W/OPS1

1325 EAST-WEST HIGHWAY

SILVER SPRING, MD 20910

i

Table of Contents

1. Background 1

1. SCOPE 2

1.1. GENERAL 2

1.2.1 APPLICABLE CONDITIONS 2

2. APPLICABLE DOCUMENTS 2

2.1. NWS AND OTHER NONMILITARY/GOVERNMENT DOCUMENTS 2

2.2 PARAGRAPH REFERENCING 3

2.3 PRECEDENCE OF DOCUMENTS 3

2.4 PLANS AND SCHEDULES 3

3.0 DELIVERABLES 3

3.1 CONTRACTOR SERVICES 3

3.2. PROCUREMENT OF AIR TEMPERATURE AND DEW POINT TEMPERATURE SENSOR

UNITS (CLIN 0001) 3

3.2.1. PROCUREMENT OF AIR TEMPERATURE AND DEW POINT TEMPERATURE SENSOR

(CLIN 0001 (TASK ORDERS)) 3

3.2.2. INSTALLATION HARDWARE AND POWER SUPPLIES (CLIN 0002 (TASK ORDERS)) 3

3.2.3. PACKAGING AND SHIPPING OF PRODUCTION UNITS AND INSTALLATION KITS

(CLIN 0001 and CLIN 0002 (TASK ORDERS), 0003 (OPTION)) 4

3.3. WARRANTY 4

3.4. TESTING, INSPECTION, AND QUALITY CONTROL (CLIN 0001, 0002 (Task Order)) 4

4. PLACE OF PERFORMANCE 5

5. TRAVEL (CLIN 0003) 5

6. GOVERNMENT-FURNISHED INFORMATION/EQUIPMENT (GFI/GFE) 6

7. LIMITATIONS ON DISTRIBUTION OF INFORMATION 6

8. Scope 6

8.1. Identification 6

8.2. System Overview 6

9. Applicable Documents Not Later than 30 days after Start of First Article Testing. 6

1. Requirements 1

1.1. General Requirements 1

1.1.1. Aspirated Probe Assembly Configuration Mounting 1

1.1.2. Siting Criteria 1

1.2. Performance Requirements 1

1.2.1. Air Temperature Measurements 1

1.2.1.1. Measurement Units 1

ii

1.2.1.2. Range 1

1.2.1.3. Accuracy 1

1.2.1.4. Resolution 2

1.2.1.5. Sensitivity 2

1.2.1.6. Update Rate 2

1.2.2. Relative Humidity Measurements 2

1.2.2.1. Range 2

1.2.2.2. Accuracy 2

1.2.2.3. Resolution 2

1.2.2.4. Sensitivity 2

1.2.2.5. Update Rate 2

1.3. Interface Requirements 2

1.4. Power Requirements 2

1.5. Environment Requirements 2

1.5.1. Temperature 2

1.5.2. Humidity 3

1.5.3. Wind 3

1.5.4. Rain 3

1.5.5. Freezing Rain 3

1.5.6. Other Environmental Elements 3

2. Quality Assurance Provisions 3

List of Tables Table 2-1: NWS and Other Nonmilitary/Government Documents 3 Table 3-1: Contractor Deliverables 5 Table 3-2: Contract Line Item Number (CLIN) Deliverables 6

1. BACKGROUND

The Automated Surface Observing System (ASOS) program is an essential, joint mission support program consisting of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). The ASOS is the nation's primary system for collecting and reporting surface-weather observations, primarily at airports, in support of aviation operations as well as climatological data, weather forecasting, and the timely issuance of warnings. ASOS directly supports:

1. Air Traffic Controllers relying on surface observations to provide airport weather parameters to safely support National Aerospace System (NAS) operations.

2. Surface-weather observations at airports required for dispatch of commercial aircraft.

3. Surface observations required to support Instrument Flight Rules (IFR) operations.

4. Surface observation data required by the Office of Operational Systems and used by the NWS to produce weather forecast models and products.

5. The aviation community and flying public by providing required dial-in services to surface-observation stations to obtain automated voice-weather reports.

6. The general public by providing up-to-date weather conditions via a dial-up service.

7. Forecasters across the country by providing detailed and timely surface conditions from ASOS sites around the nation.

8. The aviation community by providing Ground-to-Air (GTA) Radio broadcasts of automated voice weather reports.

Sensor components of the ASOS system are approaching the end of service life and require replacement to maintain the high reliability and continuity of operations required of this critical system. This solicitation is to procure a single system replacement for the existing dual-system Outside Air Temperature Sensor and Dew Point Temperature Sensor. The procured system will provide one reading that consists of the representative ambient Outside Air Temperature and Dew Point Temperature or the representative ambient Outside Air Temperature and Relative Humidity reading from which the Dew Point Temperature can be derived through other means. Both variants will consist of the necessary sensor(s), aspirated radiation shield and NEMA 6/6P (IP67) rated stainless steel Electronics Enclosure for power supply and communication requirements.

● The Enclosure will require Deutsches Institut fur Normung (DIN) Rail mounting method for current ASOS fiber optic serial modem.

● If the proposal includes multiple sensor probes, the radiation shield for the ambient Outside Air Temperature must be fan/blower aspirated. If additional probes are used as part of a separate radiation shield, the additional radiation shield is not required to be fan/blower aspirated.

For the purpose of this solicitation the following applies:

● Temperature Sensor = Outside Air Temperature (OAT), (Ta), (Temp), or simply (T)

● Dew Point Temperature Sensor = Dew Point Temperature (Td)

● Combined, also referred to as a Temperature Relative Humidity (TRH) Sensor.

The ASOS TRH specification is attached in Appendix A. While meeting the minimum requirements and having an overall exceeding other specified requirements. The temperature ranges is a goal for this procurement but meeting every performance requirement is NOT required to be competitive. The government is willing to entertain a family of sensors that offer a cost effective solution for a large percentage of the ASOS sites that do not have the extreme temperatures outlined in the specification.

Vendors are encouraged to bid their highest performing Ta/Td or TRH sensor offerings that fulfill as many of the requirements as possible. If the contractor’s proposal consists of a Ta/Td (Dew Point) sensor, the vendor must provide a method of producing a raw Ta/RH element for testing against the provided

TRH specification. Sensors for submission must be proven available commercial sensors and not in current research and development.

1. SCOPE

1.1. GENERAL

This Statement of Work (SOW) defines the requirements the contractor must meet for a Ta/Td or TRH Sensor. The contractor shall use government-furnished documentation to demonstrate that their proposed sensor meets all government needs.

1.2. PROGRAM OBJECTIVES

The contractor is to propose a Commercial Off-the-Shelf (COTS) sensor capable of providing a serial data stream to the ASOS per the specification in Appendix A. The number of sensors required to satisfy the number of operational sites is approximately 960 with approximately 200 additional sensors required as spares. The present ASOS units have been in the field for 20 or more years. Their operating system is based on firmware and not software, making it difficult to change inter-communication protocols.

Contractors are encouraged to highlight any system proposed that contains the ability to adapt to customized polling and response requirements. The procured units will be able to be mounted on existing platforms by the use of mounting adapters and hardware as necessary, and the power supplies will be compatible with existing installations. Multiple vendor product submissions may be selected and verified for performance and ASOS compatibility.

1.2.1 APPLICABLE CONDITIONS

The contractor will be required to produce units that are uniform, functional, and pass all government inspection procedures. They will be additionally tasked to provide necessary installation-related materials for initial system installations and all documentation related to installation, and operations and maintenance manuals.

2. APPLICABLE DOCUMENTS

The following documents, together with their first-tier references, form a part of this SOW and are contractually binding. All documents apply in full, except for limited application when specified herein.

The contractor shall comply with the current document issue in effect on the date of release of the Request for Proposals.

2.1. NWS AND OTHER NONMILITARY/GOVERNMENT DOCUMENTS

The contractor shall adhere to the following documents. Copies of NWS documents are available from the NOAA National Weather Service, 1325 East-West Highway, W/OBS 33, Silver Spring, Maryland 20910.

Table 2-1: NWS and Other Nonmilitary/Government Documents

Automated Surface Observing System (ASOS)

Temperature/Relative Humidity Sensor Specification

Temperature/Relative Humidity (TRH) Sensor Specification

ASOS Modification Note75A Installation of ASOS Dewpoint Sensor (Vaisala DTS1) OMB Circular A-123 Internal Control Systems HR 2548 Federal Information Security Management Act

NOAA Administrative Order 212-13

Information Technology Security Policy

Public Law 93-579 Privacy Act of 1974 Public Law 99-474 Computer Fraud and Abuse Act of 1986, as amended MIL-DTL-3100 C Detail Specification: Technical Data Packages DOD-STD-100 Standard Practice for Engineering Drawings MIL–STD–1189B Standard Department of Defense Bar Code Symbology MIL–STD–129M Marking for Shipment and Storage WS-STD-2 National Weather Service Standard Environment Criteria and

Test Procedures MIL-STD-810H Department of Defense Test Method Standard –

Environmental Engineering Considerations and Laboratory Tests

FMH-1 Federal Meteorological Handbook Number 1: Surface Weather Observations and Reports

FCM-S4-1994 Federal Standard for Siting Meteorological Sensors at Airports

2.2 PARAGRAPH REFERENCING

When sections/paragraphs are referenced herein (whether to other sections/paragraphs in this SOW or to other documents), all subordinate sections/paragraphs to those references shall apply.

2.3 PRECEDENCE OF DOCUMENTS

In the event of conflict or inconsistency between any aspect of the solicitation or resulting contract and the various portions of the SOW and documents incorporated by reference in the SOW, precedence shall be given in the following descending order, with the prevailing documents to be determined as follows:

a. The NWS ASOS Temperature and Relative Humidity (TRH) Sensor Contract.

b. The NWS ASOS Temperature and Relative Humidity (TRH) Sensor Statement of Work.

c. Government-Furnished NWS ASOS Temperature and Relative Humidity (TRH) Sensor

Specification.

d. Other referenced Specifications, Documents, and Drawings.

2.4 PLANS AND SCHEDULES

The contractor shall prepare all plans and schedules using calendar days and should assume a 40-hour workweek for staff-hour estimating.

3.0 DELIVERABLES

The following work is to be performed in accordance with delivery orders to be issued as required.

3.1 CONTRACTOR SERVICES

The contractor shall furnish all labor, tools, facilities, material, shipping, travel, and any other technical or administrative support necessary to procure the required materials and produce construct Temperature and Relative Humidity (TRH) Sensor units and installation kits in accordance with this section.

3.2 PROCUREMENT OF AIR TEMPERATURE AND DEW POINT TEMPERATURE SENSOR

UNITS

3.2.1 PROCUREMENT OF AIR TEMPERATURE AND DEW POINT TEMPERATURE

SENSOR

The contractor shall produce the Air Temperature and Dew Point Temperature Sensors that meets the government specifications initially outlined in Appendix. A meeting of the minimum requirements and the use of combination of best quality of the outlined specifications outlined in the awarded contract. The procured items will be inspected and catalogued in accordance with furnished specifications.

3.2.2 INSTALLATION HARDWARE AND POWER SUPPLIES

This is an optional requirements and is not part of the TRH operational requirements for quotation. The contractor can provide installation hardware and power supplies if they have a contracting solutions. The contractor shall provide the necessary hardware and power supplies required to install the TRH sensors.

Once the design is approved, the government will order installation kits for all TRH units. These installation kits may be required for use by the government prior to the deployment of the new systems to existing sites. The contractor shall ensure that all proposed modifications and issues are documented and all drawing packages and parts list are changed appropriately, if approved by the government.

3.2.3 PACKAGING AND SHIPPING OF PRODUCTION UNITS AND INSTALLATION

KITS

The contractor shall provide government approved documentation of current practices in place to pack, ship, and protect the units during transit. The contractor will provide detailed tracking information of shipments to the NOAA National Logistics and Reconditioning Center (NLRC) which can be shared with the Contracting Officer (CO) and Contracting Officer Representative (COR). The cost of shipping shall be incorporated with the price of the sensors. Upon issuance of orders, the contractor will package and ship the units to:

NOAA National Logistics and Reconditioning Center (NLRC) 14200 Merritt Rd Grandview, Missouri 64030

3.3 WARRANTY

The contractor shall provide a minimum one (1) year warranty for each TRH Sensor. Warranties shall begin upon government acceptance at NLRC. The contractor shall repair or replace all units that fail for the duration of the warranty at no cost to the government. The warranty shall include shipping, labor, and parts.

3.4 TESTING, INSPECTION, AND QUALITY CONTROL (CLIN 0001, 0002 (Task Order)) The government reserves the right to conduct random sampling of units being produced for final quality control inspection. All government quality control inspections will occur at the NOAA NLRC upon arrival.

Table 3-1. Contractor Deliverables

Item

Number Item Quantity Format and Media Due Date Deliver To

0001 Post-Award Conference

1 Contractor format schedules, and production plans

NLT 30 days after the Contract award.

COR, CO

0002 Quality Control Plan

1 Contractor format in MS Word

NLT 30 days after contract award

COR, CO

0003 Detailed Delivery Plan and Procedures

1 Contractor format in MS Word

NLT 30 days after contract award

COR, CO

0004 Detailed Delivery Schedule, including cost breakouts for quantities.

1 Contractor format

NLT 15 days after Task Order is exercised.

COR, CO

0003 Other Direct Cost (ODC) — Travel

1 Contractor format reports in MS Word

As required and approved

COR

4. PLACE OF PERFORMANCE

All activities shall take place at the contractor’s facilities. Program Reviews and other meetings shall take place at locations that are to be determined by the government.

5. TRAVEL (CLIN 0003)

The contractor shall travel to participate in events as required. The contractor shall provide subject matter experts to the government's Integrated Program Team (IPT) Reviews for Supportability and Logistics as required. The contractor shall provide briefing materials if asked to provide a presentation at an IPT Review. The contractor will request permission to travel, in writing, from the Contracting Officer Representative (COR), which will include date of travel, personnel, length of travel, and estimated costs.

Upon approval the contractor will perform the travel and report to the COR a trip report and actual costs.

The contractor will follow the regulations and guidance in the Joint Travel Regulation (JTR) dated June 1, 2021.

6. GOVERNMENT-FURNISHED INFORMATION/EQUIPMENT (GFI/GFE)

GFI will include Temperature and Relative Humidity (TRH) Sensor Specification Documents and Installation Documents. No GFE will be provided.

7. LIMITATIONS ON DISTRIBUTION OF INFORMATION

The contractor shall not distribute reports, data, or information of any nature arising from its performance under this contract, except as provided by this contract or as may be directed or authorized by the COR.

Appendix A - TRH Specification

A-4

1. Minimum Mandatory Requirements

ASOS

Requirements

UNITS RANGES Ref.

Tp.

ACCURACY RESOLUTION (X = Compliant or better)

WMO REF. STD:

Temperature (Max.)

Deg.

Fahrenheit (F)

-80 to +140

50 ± 1.0 (95% conf. at Ref.

Tp.)

0.1 X NWSI 10-

1302 (2018), Table 4.1 for details (Confidence at Ref. Tp's., time constants, etc.)

Temperature (Min.)

-80 TO

50 ± 1.0 (90% conf. at Ref.

Tp.)

0.1 X

Dew Point Deg.

Fahrenheit (F)

32 to 120 ± 2.0 0.1 X NWS 10-1302 (2018), Table 7.2

1.1. General Requirements

[TRH-1] The Temperature/Relative Humidity (TRH) Sensor must be a Commercial Off-the-Shelf (COTS) or non-development item (NDI) sensor.

[TRH-2] The TRH Sensor must be capable of providing both air-temperature and relative-humidity measurements in accordance with Section 3.2.

[TRH-3] A technical operating manual must be supplied with each TRH Sensor in an editable electronic format with permission for the government to use for training/maintenance purposes.

[TRH-4] The TRH Sensor must be delivered in an “Aspirated Probe Assembly” Configuration.

1.1.1. Aspirated Probe Assembly Configuration Mounting

[TRH-5] The TRH Sensor probe can be installed in an included aspirated-radiation shield that protects the sensor from solar radiation and is adequately ventilated to ensure that measurements are representative of the free air circulating in the location where the sensor is installed.

[TRH-6] The base of the TRH Sensor “Aspirated Probe Assembly” can be mounted on a 3x7x½-inch, 4-hole, steel-pipe flange. The existing mounting flange is 18 inches above ground level.

[TRH-7] Or as an alternate mounting, the TRH Sensor “Aspirated Probe Assembly” can mount on a 3.5-inch OD aluminum pipe. The maximum height of the existing mounting pipe is 66 inches above ground level.

1.1.2. Siting Criteria

[TRH-8] The TRH Sensor can be capable of meeting the Performance Requirements in Section 3.2 when the sensor is installed with the aspirator intake 5 ± 1 feet (1.5 ± 0.3 meters) above ground level.

[TRH-9] The TRH Sensor can meet the Performance Requirements in Section 3.2 when installed between a 48-inch-high precipitation-accumulation sensor 5 feet to the west and a 108-inch-high present weather sensor 5 feet to the east.

1.2. Performance Requirements

1.2.1. Air Temperature Measurements

1.2.1.1. Measurement Units

[TRH-10] The TRH sensor can be capable of measuring air temperature in degrees Celsius (oC) and in degrees Fahrenheit (oF).

1.2.1.2. Range

[TRH-11] The air temperature measurement range for the TRH sensor can be from –80oF to +130oF.

1.2.1.3. Accuracy

[TRH-12] The air temperature measurement accuracy for the TRH sensor can be + 0.5oC (1oF) root mean square error (RMSE) with a maximum error of 1oC (2oF).

1.2.1.4. Resolution

[TRH-13] The TRH Sensor air temperature measurements can have a resolution of 0.1oC (0.1oF).

1.2.1.5. Sensitivity

[TRH-14] The TRH Sensor can detect changes in air temperature of 0.1oC (0.1oF).

1.2.1.6. Update Rate

[TRH-15] The TRH Sensor can provide an updated air temperature measurement at least once every 10 seconds.

1.2.2. Relative Humidity Measurements

1.2.2.1. Range

[TRH-16] The relative humidity measurement range for the TRH sensor can be from 0–100% RH.

1.2.2.2. Accuracy

[TRH-17] The relative humidity measurement accuracy for the TRH sensor can be + 2% RH.

1.2.2.3. Resolution

[TRH-18] The TRH Sensor relative humidity measurements can have a resolution of 1% RH.

1.2.2.4. Sensitivity

[TRH-19] The TRH Sensor can detect changes in relative humidity of 1% RH.

1.2.2.5. Update Rate

[TRH-20] The TRH Sensor can provide an updated relative humidity measurement at least once every 10 seconds.

1.3. Interface Requirements

[TRH-21] The TRH Sensor can have a built-in asynchronous data interface mode capable of an RS- 232 or RS 485 interface with user-selectable baud rate, parity, data bits, and stop bits.

1.4. Power Requirements

[TRH-22] The TRH Sensor can operate using a power supply that operates with an input of 120 VAC ± 10%, 60 Hz, and less than 5 amps.

1.5. Environment Requirements

1.5.1. Temperature

[TRH-23] The TRH Sensor can be able to maintain operations in temperatures up to 130 o F.

[TRH-24] The TRH Sensor can be able to maintain operations in temperatures down to –80 o F.

[TRH-25] The TRH Sensor can be able to maintain operations in temperature shock conditions dropping from 70 OF to –60 OF.

[TRH-26] The TRH Sensor can be able to recover operations from temperature shock conditions dropping 70 OF to –80 o F.

[TRH-27] The TRH Sensor can be able to maintain operations in temperature shock conditions increasing from 80 OF to 120 OF.

[TRH-28] The TRH Sensor can be able to recover operations from temperature shock conditions dropping 80 OF to 130 o F.

1.5.2. Humidity

[TRH-29] When operating in ambient air temperature conditions less than or equal to 80oF, the TRH Sensor can operate without performance degradation in ambient relative humidity conditions up to 100% RH.

[TRH-30] When operating in ambient air temperature conditions within the range of 81oF to 95oF, the TRH Sensor can operate without performance degradation in ambient relative humidity conditions up to 95% RH.

1.5.3. Wind

[TRH-31] The TRH Sensor can operate without performance degradation when exposed to 1-minute sustained average wind speeds up to 43 knots.

[TRH-32] The TRH Sensor can operate without performance degradation when exposed to 1-second wind gusts up 62 knots.

1.5.4. Rain

[TRH-33] The TRH Sensor can operate without performance degradation when exposed to rain falling at a rate of up to 3 inches per hour with up to 30-knot wind speed conditions.

[TRH-34] The TRH Sensor can be able to recover operations from rain conditions of up to 5 inches per hour with 73-knot winds.

1.5.5. Freezing Rain

[TRH-35] The TRH Sensor can be able to maintain operations in freezing rain conditions of ice accretion up to 0.5 inches per hour up to 1.0 inches with 20-knot winds.

1.5.6. Other Environmental Elements

[TRH-36] The TRH Sensor can be able to maintain and recover operations from exposure to dust conditions up to 5.0 mg/ft3 with winds of 2.6 knot to 4.3 knots.

[TRH-37] The TRH Sensor can be able to maintain and recover operations from exposure to atmospheric pressures as low as 15.7 inches of Hg.

[TRH-38] The TRH Sensor can be able to maintain and recover operations from exposure to the electromagnetic environment of a typical airport.

[TRH-39] The TRH Sensor can be able to maintain and recover operations from exposure to salt fog characteristic of a typical marine environment.

2. QUALITY ASSURANCE PROVISIONS

Test and Evaluation (T&E) may be conducted by the government to verify compliance of the TRH Sensor with the requirements specified in Section 3.

Test Results must be provided by the TRH Sensor manufacturer to verify compliance of the TRH Sensor with the requirements specified in Section 3. TRH Sensor Manufacturer testing must demonstrate that testing was performed using a calibrated reference instrument traceable to the National Institute of Standards and Technology (NIST). TRH Sensor manufacturer performed test procedures and data sheets must demonstrate that the proposed TRH Sensor complies with the requirements specified in Section 3.

Test Results must include a matrix that cross-references each specific requirement from Section 3 to the specific test result that demonstrates compliance with the requirement.

2. Quality Assurance Provisions