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Evaluation of the doraiswamy-thompson winter wheat crop calendar model incorporating a modified spring restart sequence
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Taylor, T. W. Ravet, F. W. |
| Copyright Year | 1981 |
| Description | The Robertson phenology was used to provide growth stage information to a wheat stress indicator mode. A stress indicator model demands two acurate predictions from a crop calendar: date of spring growth initiation; and crop calendar stage at growth initiation. Several approaches for restarting the Robertson phenology model at spring growth initiation were studied. Although best results were obtained with a solar thermal unit method, an alternate approach which indicates soil temperature as the controlling parameter for spring growth initiation was selected and tested. The modified model (Doraiswamy-Thompson) is compared to LACIE-Robertson model predictions. |
| File Size | 548235 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820015706 |
| Archival Resource Key | ark:/13960/t75t8fw0m |
| Language | English |
| Publisher Date | 1981-11-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Crop Growth Earth Resources Program Agristars Project Phenology Plant Stress Annual Variations Surface Temperature Satellite Observation Mathematical Models Crop Calendars Wheat Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
