Summary of activities for DOE Award DE-FG02-02ER63444 for "Modeling dynamic vegetation for decadal to multi-century climate change studies"

PDF Version Also Available for Download.

Description

This is a summary of all activities that were funded by the DOE Award DE-FG02-02ER63444, ''Modeling dynamic vegetation for decadal to multi-century climate change studies'', during the period 09/01/2001-11/30/2004. The goal of this research has been to produce a process-based vegetation activity model suitable for coupling with a general circulation model (GCM) of the atmosphere, to simulate the biophysics of vegetation transpiration and photosynthesis, seasonal growth, and vegetation cover change. The model was to be developed within the NASA Goddard Institute for Space Studies (GISS) GCM. The model as envisioned in the original proposal was to be an adaptation of ... continued below

Physical Description

88

Creation Information

Kiang, Nancy Y. September 26, 2005.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

This is a summary of all activities that were funded by the DOE Award DE-FG02-02ER63444, ''Modeling dynamic vegetation for decadal to multi-century climate change studies'', during the period 09/01/2001-11/30/2004. The goal of this research has been to produce a process-based vegetation activity model suitable for coupling with a general circulation model (GCM) of the atmosphere, to simulate the biophysics of vegetation transpiration and photosynthesis, seasonal growth, and vegetation cover change. The model was to be developed within the NASA Goddard Institute for Space Studies (GISS) GCM. The model as envisioned in the original proposal was to be an adaptation of Dr. Friend's previous well-known dynamic vegetation model, HYBRID (Friend, et.al., 1997; Friend and White, 2000). After examining the issues of GCM model coupling, Dr. Friend realized some of the complexities of HYBRID would not be computationally suitable for the GCM. He wrote a review paper on ''big-leaf'' modeling issues (Friend, 2001), and concentrated on developing a new vegetation biophysics approach, which involved a computationally simply canopy-level conductance scheme (thus avoiding the problem of leaf-to-canopy scaling) and photosynthesis based on the work of Kull and Kruijt (1998), which distinguished the portion of leaf nitrogen that is photosynthetic. Dr. Friend presented the results photosynthesis/conductance scheme coupled to the Model II version of the GISS GCM (Hansen, et.al., 1983) in a talk at the 2002 AGU Fall Meeting in San Francisco. After Dr. Kiang arrived in April 2003, she, Dr. Friend, and Dr. Aleinov implemented the new scheme in the Model E version of the GISS GCM (Schmidt, et.al., accepted), and published results of improved surface temperatures and cloud cover in the Journal of Climate (Friend and Kiang, 2005). Till the end of the award period, Dr. Friend continued to develop a new vegetation growth model involving nitrogen allocation to light-stratified canopy layers compatible with the photosynthesis scheme. Dr. Kiang assembled a larger collaborative team, proposing a complete dynamic vegetation model with nitrogen cycling and vegetation change for GCMs. The model design was presented at the SciDac Conference in March 2004 in Charleston, SC, and the AGU Spring Meeting in May 2004 in Montreal.

Physical Description

88

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: DOE/ER/63444-2
  • Grant Number: FG02-02ER63444
  • DOI: 10.2172/850322 | External Link
  • Office of Scientific & Technical Information Report Number: 850322
  • Archival Resource Key: ark:/67531/metadc785733

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • September 26, 2005

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • Aug. 3, 2016, 8:40 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 2

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Kiang, Nancy Y. Summary of activities for DOE Award DE-FG02-02ER63444 for "Modeling dynamic vegetation for decadal to multi-century climate change studies", report, September 26, 2005; United States. (digital.library.unt.edu/ark:/67531/metadc785733/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.