Fuel_Moisture_Sensor_System_-SOW_05-26-26.docx
DOCX document 80 KB Posted
- Attached to
- RFQ- ITS 2170
- Solicitation number
- 0000039377
- Issued by
- Sacramento County, San Francisco City, California
About this file
This Scope of Work document outlines an 18-month pilot project between CAL FIRE and a vendor to evaluate automated fuel moisture monitoring systems. The project encompasses the installation and evaluation of DRYLINE or equivalent fuel moisture sensors at five high-priority wildfire risk sites in California. The sensors will measure dead fuels (10-hour, 100-hour, and 1000-hour) and live shrub fuel moisture using electrical impedance spectroscopy technology. Each site will be equipped with a solar-powered LoRaWAN or equivalent gateway with battery backup and cellular or satellite connectivity for remote locations. The vendor will be responsible for providing and configuring sensors and gateways, managing network connectivity and data platforms, conducting field data collection for verification, and providing training to CAL FIRE staff on sensor installation and operation. CAL FIRE will identify and approve final site locations, participate in installations with vendor training, assist with calibration sampling, and conduct periodic field visits for manual fuel moisture collection to verify sensor performance.
The total project cost should encompass all hardware costs, services, integration expenses, travel, and training required for the 18-month pilot across all five sites. All hardware purchased during the pilot becomes the property of CAL FIRE and may be redeployed for expanded operations beyond the initial evaluation period. Data will be delivered through multiple channels including a real-time self-service dashboard, an API for automated ingestion into CAL FIRE systems, and monthly summary reports with trend analysis and comparisons to field-collected samples. The sensors will be calibrated for specific plant species at each site to ensure data accuracy reflects local fuel moisture dynamics relevant to CAL FIRE's operational decision-making for proactive wildfire risk management.
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1. Introduction CAL FIRE Objectives Evaluation whether automate continuous fuel moisture monitoring can provide timely and accurate data comparable to manual sampling.
CAL FIRE proposes an 18-month pilot project to evaluate fuel moisture sensing systems at five sites in high-priority wildfire risk areas. This pilot will provide CALFIRE with continuous fuel moisture data to support proactive wildfire risk management.
CALFIRE will work together on sensor installation and provide on-site assistance and will require training so CALFIRE staff can carry out a portion of the installations independently. The pilot will include calibration of the system for the specific plant species of interest at each site to ensure the data reflects the moisture dynamics of fuels most relevant to CALFIRE operations. DRYLINE or equivalent sensors will measure dead fuels (10-hour, 100-hour, and 1000-hour) and live shrub fuel.
Data will be delivered via a real-time self-service dashboard, along with monthly summary reports and a final performance evaluation. Data will also be made available via API to support automated ingestion into CALFIRE systems.
2. Pilot Objectives •Validate DRYLINE or equivalent sensor performance on species of interest at existing CALFIRE fuel measurement sites.
•Provide CALFIRE with continuous fuel moisture data to support operational decision-making for fire risk management.
•Integrate DRYLINE or equivalent sensors measurements into CALFIRE's ArcGIS environment for map-based visualization and analysis.
3. Project Scope and Design Sites and Coverage The project includes five sites, chosen in collaboration with CALFIRE in high-priority wildfire risk areas. Sites will be selected to correspond to locations where ongoing data collection is already happening to support verification and calibration. All sites will be reasonably accessible for maintenance and verification sampling.
Sensors and Measurements At each site, DRYLINE or equivalent sensors will measure dead fuels (10-hour, 100-hour, and 1000-hour) and living fuel moisture. Sensor locations will be recorded at installation as part of the site inventory. Within a site, DRYLINE or equivalent sensors can reliably communicate up to ~1 km to the gateway in typical terrain. With good line-of-sight conditions, range can extend to ~5 km.
Gateway and Power Each site will have a solar-powered LoRaWAN or equivalent gateway with battery backup. Gateway backhaul will be provided via cellular service or satellite connectivity for remote locations.
4. Roles and Responsibilities Vendor will provide, configure, and support DRYLINE or equivalent sensors and gateways, manage network connectivity and the data platform, assist with field data collection for verification, and provide training for CALFIRE staff on sensor installation. Vendor will also lead the calibration process for species of interest in collaboration with CALFIRE.
CALFIRE will identify and approve final site locations, perform a portion of the sensor installations with training from Vendor, assist in calibration sampling for target species, participate in periodic field visits for manual fuel moisture collection, and review pilot performance.
6. Data and Reporting Data will be delivered to CALFIRE via self-service dashboard access, API Integrations, and ArcGIS compatible datasets. Monthly summary reports will highlight trends, anomalies, and comparisons with field-collected samples.
7. Technical Overview of DRYLINE or Equivalent Fuel Moisture Sensors The DRYLINE or equivalent system will need to measure fuel moisture using electrical impedance spectroscopy (EIS), a non-destructive method that detects how water changes a material's electrical properties. Water in plant material conducts electricity more easily than dry fibers and also changes the way the material stores electrical energy. Each sensor needs to be designed for a specific type of fuel (dead fuel probes and shrub probes) with cloud-based calibrations applied for the plant species of interest. The sensors must be rugged, weather-resistant, and built for continuous outdoor operation.
8. Cost The total cost for the 5-site, 18-month DRYLINE or equivalent pilot please include hardware costs, services, any integration cost, travel and training cost in the bid provided.
All hardware purchased for the pilot is the property of CALFIRE can be redeployed for expanded operations beyond the 18-month evaluation period.
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