Accumulated degree hours (ADH)
The total thermal energy above a species' developmental base temperature, summed over time. The foundational calculation in blow fly larval ageing: divide the developmental threshold ADH by the mean hourly temperature above base to get the expected development time.
Explained in these topics
- Insect Biology and Taxonomy for the Forensic Entomologist
- The Blow Fly Life Cycle: Egg to Adult
- Temperature, Accumulated Degree Days and Degree Hours
- Sources of Error and Uncertainty in Entomological PMI
- Aquatic Forensic Entomology and Submerged Remains
- Forensic Entomology Casework and Scene Interpretation