Why UNIMAS GreenPulse exists
UNIMAS GreenPulse is a campus tree growth and carbon absorption monitoring system for Universiti Malaysia Sarawak, Kota Samarahan. It brings together field measurement, IoT sensing, and open data so that researchers, sustainability officers, and university management can see — and steward — the living infrastructure of campus.
Track every monitored tree on campus, record quarterly growth, and estimate biomass and CO₂ absorption to support ESG reporting and conservation planning.
Field measurements are stored with full provenance (device, source, observer) so they can be re-analysed and validated by qualified researchers.
Dashboards summarise health, growth, and absorption by area and species — informing planting, replacement and protection decisions.
Designed to ingest manual records, portable caliper data, and continuous IoT sensors as the network grows.
Estimates only. CO₂ absorption values shown across UNIMAS GreenPulse are calculated using a placeholder allometric model (Chave 2014 simplified) and species-level wood density. They must be validated by qualified researchers before use in formal carbon accounting or ESG disclosure.
For this prototype CO₂ absorption is estimated using a simplified Chave 2014 allometric formula:
biomass(kg) = 0.0673 × (wood_density × dbh² × height)^0.976 carbon_storage = biomass × carbon_fraction (default 0.47) co2_eq = carbon_storage × 3.67
The species table stores wood density, carbon fraction, and CO₂ conversion factor, so the formula is configurable and can be replaced with peer-reviewed local allometric equations as the programme matures.