Evaluation of JULES-crop performance against site observations of irrigated maize from Mead, Nebraska

被引：28

作者：

Williams, Karina ^{[1
]}

Gornall, Jemma ^{[1
]}

Harper, Anna ^{[2
]}

Wiltshire, Andy ^{[1
]}

Hemming, Debbie ^{[1
]}

Quaife, Tristan ^{[3
]}

Arkebauer, Tim ^{[4
]}

Scoby, David ^{[4
]}

机构：

[1] Hadley Ctr, Met Off, Exeter, Devon, England

[2] Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England

[3] Univ Reading, Dept Meteorol, Natl Ctr Earth Observat, Reading, Berks, England

[4] Univ Nebraska Lincoln, Dept Agron & Hort, Lincoln, NE USA

来源：

GEOSCIENTIFIC MODEL DEVELOPMENT | 2017年 / 10卷 / 03期

基金：

英国工程与自然科学研究理事会; 欧盟第七框架计划;

关键词：

ENVIRONMENT SIMULATOR JULES; CARBON-DIOXIDE EXCHANGE; MODEL DESCRIPTION; PHOTOSYNTHESIS; RESPIRATION; GROWTH; IMPLEMENTATION; TEMPERATURE; FLUXES; ENERGY;

D O I：

10.5194/gmd-10-1291-2017

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The JULES-crop model (Osborne et al., 2015) is a parametrisation of crops within the Joint UK Land Environment Simulator (JULES), which aims to simulate both the impact of weather and climate on crop productivity and the impact of croplands on weather and climate. In this evaluation paper, observations of maize at three FLUXNET sites in Nebraska (US-Ne1, US-Ne2 and US-Ne3) are used to test model assumptions and make appropriate input parameter choices. JULES runs are performed for the irrigated sites (US-Ne1 and US-Ne2) both with the crop model switched off (prescribing leaf area index (LAI) and canopy height) and with the crop model switched on. These are compared against GPP and carbon pool FLUXNET observations. We use the results to point to future priorities for model development and describe how our methodology can be adapted to set up model runs for other sites and crop varieties.

引用

页码：1291 / 1320

页数：30

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