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Understanding the DayCent model: Calibration,sensitivity, and identifiability through inverse modeling
Affiliation:1. Department of Biological System Engineering, University of Wisconsin–Madison, Madison, WI, USA;2. United States Geological Survey, Wisconsin Water Science Center, Middleton, WI, USA;3. Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, USA;4. Dept. of Agronomy, Iowa State University, Ames, IA, USA
Abstract:
Keywords:DayCent model  Inverse modeling  PEST  Sensitivity analysis  Parameter identifiability  Parameter correlations  ANPP"}  {"#name":"keyword"  "$":{"id":"kwrd0015"}  "$$":[{"#name":"text"  "_":"aboveground net primary productivity  ARS"}  {"#name":"keyword"  "$":{"id":"kwrd0025"}  "$$":[{"#name":"text"  "_":"Agricultural Research Service  C"}  {"#name":"keyword"  "$":{"id":"kwrd0035"}  "$$":[{"#name":"text"  "_":"carbon  CEC"}  {"#name":"keyword"  "$":{"id":"kwrd0045"}  "$$":[{"#name":"text"  "_":"cation-exchange capacity  methane  C/N ratio"}  {"#name":"keyword"  "$":{"id":"kwrd0065"}  "$$":[{"#name":"text"  "_":"carbon to nitrogen ratio  d"}  {"#name":"keyword"  "$":{"id":"kwrd0075"}  "$$":[{"#name":"text"  "_":"index of agreement  DEFAC"}  {"#name":"keyword"  "$":{"id":"kwrd0085"}  "$$":[{"#name":"text"  "_":"decomposition factor  DNDC"}  {"#name":"keyword"  "$":{"id":"kwrd0095"}  "$$":[{"#name":"text"  "_":"denitrification decomposition model  EPA"}  {"#name":"keyword"  "$":{"id":"kwrd0105"}  "$$":[{"#name":"text"  "_":"Environmental Protection Agency  GHG"}  {"#name":"keyword"  "$":{"id":"kwrd0115"}  "$$":[{"#name":"text"  "_":"greenhouse gas  GML"}  {"#name":"keyword"  "$":{"id":"kwrd0125"}  "$$":[{"#name":"text"  "_":"Gauss–Marquardt–Levenberg  ammonium cation  J"}  {"#name":"keyword"  "$":{"id":"kwrd0145"}  "$$":[{"#name":"text"  "_":"Jacobian matrix  N"}  {"#name":"keyword"  "$":{"id":"kwrd0155"}  "$$":[{"#name":"text"  "_":"nitrogen  nitrous oxide  NPP"}  {"#name":"keyword"  "$":{"id":"kwrd0175"}  "$$":[{"#name":"text"  "_":"net primary productivity  nitrate anion  PEST"}  {"#name":"keyword"  "$":{"id":"kwrd0195"}  "$$":[{"#name":"text"  "_":"parameter estimation software  MB"}  {"#name":"keyword"  "$":{"id":"kwrd0205"}  "$$":[{"#name":"text"  "_":"mean bias  RMSE"}  {"#name":"keyword"  "$":{"id":"kwrd0215"}  "$$":[{"#name":"text"  "_":"root mean square error  rRMSE"}  {"#name":"keyword"  "$":{"id":"kwrd0225"}  "$$":[{"#name":"text"  "_":"relative root mean square error  SOC"}  {"#name":"keyword"  "$":{"id":"kwrd0235"}  "$$":[{"#name":"text"  "_":"soil organic carbon  SOM"}  {"#name":"keyword"  "$":{"id":"kwrd0245"}  "$$":[{"#name":"text"  "_":"soil organic matter  SVD"}  {"#name":"keyword"  "$":{"id":"kwrd0255"}  "$$":[{"#name":"text"  "_":"singular value decomposition  SWSR"}  {"#name":"keyword"  "$":{"id":"kwrd0265"}  "$$":[{"#name":"text"  "_":"sum of weighted squared residuals  VSWC"}  {"#name":"keyword"  "$":{"id":"kwrd0275"}  "$$":[{"#name":"text"  "_":"volumetric soil water content  UAN"}  {"#name":"keyword"  "$":{"id":"kwrd0285"}  "$$":[{"#name":"text"  "_":"urea ammonium nitrate
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