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Change Log

All notable changes are kept in this file. All changes made should be added to the section called Unreleased. Once a new release is made this file will be updated to create a new Unreleased section for the next release.

For more information about this file see also Keep a Changelog .

[Unreleased]

Added

  • model structure and parameter documentation #42
  • Changelog #33
  • Build docs and push to gh-pages #41

Fixed

Changed

  • reorganized codebase, removed old sensitivity, ensemble, and fitting code as well as other study-specific code.

Removed

SIPNET 1.3.0 - "Event Handler"

v1.3.0 represents the initial development of support for agricultural management events.

Added

  • Introduced Event Handler infrastructure #23
  • Add testing infrastructure.

Changed

  • Code cleanup (including comment standardization and spelling corrections).
  • Update Doxyfile
  • Add make help.

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SIPNET 1.2.1 - "Add LICENSE and minor fixes"

Added

  • Add BSD 3-Clause LICENSE file.
  • Migrate documentation from Word to Markdown.

Fixed

  • Minor fixes prior to agricultural management implementation.
  • Bug fix for output formatting (identified by @Qianyuxuan).

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SIPNET 1.2.0 - "fAPAR assimilation"

Added

  • Modify fAPAR calculation to enable assimilation of MODIS satellite-derived fAPAR.

Publications

Zobitz, J.M., David J.P. Moore, Tristan Quaife, Bobby H. Braswell, Andrew Bergeson, Jeremy A. Anthony, and Russell K. Monson. 2014. “Joint Data Assimilation of Satellite Reflectance and Net Ecosystem Exchange Data Constrains Ecosystem Carbon Fluxes at a High-Elevation Subalpine Forest.” Agricultural and Forest Meteorology 195–196 (September):73–88. https://doi.org/10.1016/j.agrformet.2014.04.011.

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SIPNET 1.1.0 - "Roots and Microbes"

Moore et al. (2008)

  • Support joint CO2 and H2O assimilation.

Zobitz et al. (2008)

  • Add process-based soil respiration with microbes "soil quality model".
  • Add fine and coarse root pools.
  • Compare different model structures (base, soil quality, and roots).
  • Calculate Transpiration using Ball Berry, initial implementation of and Penman-Monteith

Publications

Moore, David J.P., Jia Hu, William J. Sacks, David S. Schimel, and Russell K. Monson. 2008. “Estimating Transpiration and the Sensitivity of Carbon Uptake to Water Availability in a Subalpine Forest Using a Simple Ecosystem Process Model Informed by Measured Net CO2 and H2O Fluxes.” Agricultural and Forest Meteorology 148 (10): 1467–77. https://doi.org/10.1016/j.agrformet.2008.04.013.

Zobitz, J. M., D. J. P. Moore, W. J. Sacks, R. K. Monson, D. R. Bowling, and D. S. Schimel. 2008. “Integration of Process-Based Soil Respiration Models with Whole-Ecosystem CO2 Measurements.” Ecosystems 11 (2): 250–69. https://doi.org/10.1007/s10021-007-9120-1.

SIPNET 1.0.0 - "SIPNET First Release"

The first release of SIPNET reflected a series of improvements over the original SIPNET model (Braswell et al., 2005). The model was developed by Bill Sacks and Dave Moore, with contributions from John Zobitz. The model was parameterized using data from the Harvard Forest flux tower using MCMC (Sacks et al., 2006). The model was designed to simulate the carbon and water cycles of a forest ecosystem at half-daily time steps.

Braswell et al. (2005)

  • Initial version of SIPNET.
  • Half-daily time step with two vegetation carbon pools and one soil pool.
  • MCMC parameter fitting with observations from Harvard forest flux tower.

Sacks et al. (2006)

  • More complex water routine incorporating evaporation and snow pack.
  • Evergreen leaf phenology.

Sacks et al. (2007): "Better Respiration"

  • Shut down photosynthesis and foliar respiration when soil temperature < threshold.
  • Partition autotrophic and heterotrophic respiration.

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Publications

Braswell, Bobby H., William J. Sacks, Ernst Linder, and David S. Schimel. 2005. “Estimating Diurnal to Annual Ecosystem Parameters by Synthesis of a Carbon Flux Model with Eddy Covariance Net Ecosystem Exchange Observations.” Global Change Biology 11 (2): 335–55. https://doi.org/10.1111/j.1365-2486.2005.00897.x.

Sacks, William J., David S. Schimel, and Russell K. Monson. 2007. “Coupling between Carbon Cycling and Climate in a High-Elevation, Subalpine Forest: A Model-Data Fusion Analysis.” Oecologia 151 (1): 54–68. https://doi.org/10.1007/s00442-006-0565-2.

Sacks, William J., David S. Schimel, Russell K. Monson, and Bobby H. Braswell. 2006. “Model‐data Synthesis of Diurnal and Seasonal CO2 Fluxes at Niwot Ridge, Colorado.” Global Change Biology 12 (2): 240–59. https://doi.org/10.1111/j.1365-2486.2005.01059.x.