Editing Wetland Area Loss Rate — Land (section)

== Monitoring and Measurement ==
Wetland area loss rate is monitored through a combination of wetland inventories and land cover monitoring programs. These efforts utilize remote sensing technologies, including satellite imagery and aerial photography, to detect changes in wetland extent over time. Field surveys and ground-truthing complement remote observations to improve accuracy.

Institutions involved in wetland monitoring include national environmental agencies and international organizations that maintain standardized wetland classification systems and inventories. Data from these sources are analyzed annually to calculate the net loss or gain in wetland area, expressed in hectares per year. Advances in geographic information systems (GIS) and image processing have enhanced the resolution and temporal frequency of wetland monitoring globally.

Within the SIGNAL system, this phenomenon is treated as a defined environmental signal whose boundaries and measurement conventions are described below.