Detailed tender specification clauses

Urban heat

Use these clauses when the network must compare heat exposure across neighborhoods or support public-health, planning, and cooling-intervention decisions.

copy into tender docsadapt to local climateverify with acceptance tests

Specification clauses

Use these as starting clauses. Replace bracketed values with project-specific values, legal terms, and reviewed performance thresholds before formal procurement.

Clause 1

Heat-risk decision statement

The buyer shall state whether the network supports heat-risk mapping, intervention evaluation, public-health alerts, cooling-center planning, tree-canopy planning, or public dashboards.

Bidder evidence:
Use-case matrix showing variables, locations, update intervals, and decision outputs.

Acceptance check:
Buyer confirms that every station and variable supports a declared decision or analysis.

Clause 2

Temperature and humidity measurement

Air-temperature and humidity sensors shall meet the required range, accuracy, response time, and calibration interval for outdoor urban exposure.

Bidder evidence:
Datasheets, calibration certificates, environmental operating limits, and maintenance procedure.

Acceptance check:
Buyer compares delivered sensors and certificates against serial numbers and tender requirements.

Clause 3

Radiation shield and local heat bias control

Stations shall include radiation shielding or aspiration appropriate for urban heat exposure and shall avoid avoidable bias from walls, pavement, exhaust, rooftops, vehicles, or artificial heat sources unless such bias is intentionally part of the site class.

Bidder evidence:
Siting photographs, shield documentation, mounting height, surface-context notes, and exposure classification.

Acceptance check:
Buyer audits site placement and confirms that local bias is documented and acceptable for the intended comparison.

Clause 4

Comparable neighborhood metadata

Each station shall provide metadata needed to compare neighborhoods, including land cover, shade context, surface material, sky exposure, distance to buildings or roads, mounting height, and maintenance access.

Bidder evidence:
Metadata schema, GIS layer, photographs, and installation checklist.

Acceptance check:
Buyer reviews metadata completeness and verifies a sample of stations in the field.

Clause 5

Data interval, QA flags, and missing values

The system shall report measurements at the agreed interval and shall distinguish valid, suspect, missing, estimated, and maintenance-affected values.

Bidder evidence:
Sample files, QA/QC method, flag dictionary, and missing-value convention.

Acceptance check:
Buyer imports data into maps or dashboards and verifies correct handling of timestamps, units, and flags.

Clause 6

Side-by-side field comparison

Before full acceptance, a representative subset of sensors shall undergo side-by-side comparison against reference or project-approved equipment for an agreed period.

Bidder evidence:
Comparison procedure, reference equipment details, raw data, summary statistics, and deviation notes.

Acceptance check:
Buyer reviews comparison results and records any rejected or corrected sensors.