ncx-gitbot
commented
1 year ago NCX response: The business as usual model is a hierarchical statistical model that predicts one-year harvest risk and intensity based on FIA training data and a suite of covariates that include geographic, biological, economic, and sociological factors. Partial pooling across forest types ensures that the model is able to leverage the similarity and ubiquity of covariate relationships across the forests of the continental U.S. while still allowing for regionally specific differences.
Commenter Organization: EP Carbon
Commenter: Kyle Holland
2021 Deferred Harvest Methodology Section: No Section Indicated
Comment: The methodology fails to provide criteria for model validation to infer unbiasedness. Given that crediting is largely a function of the harvest risk factor π, Appendix A should specify methods to demonstrate unbiasedness in model used estimated of π, in addition to requirements to assess predictive uncertainty in π. Specifically, the methodology should give procedures for statistical cross validation of the model to demonstrate that the model is unbiased in the prediction of π across the entire domain of the selected model. Further, it should provide specific criteria for model selection, such as the use of AIC, to ensure models are not over parameterized. Where a remote-sensing model is used to estimate πΆπ‘0 , the methodology should require the use of VT0005 Tool for measuring aboveground live forest biomass using remote sensing.
Proposed Change: No Proposed Change