Remotely sensed vegetation phenology of sky islands in the madrean archipelago

Willem van Leeuwen, M. A. El Vilaly

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The goal of this work is to develop an assessment of changes in landscape scale phenology (Timing of biological events such as green-up and flowering) for vegetation along elevation gradients for mountain sky islands in the drylands of the Southwest US and Northern Mexico. The main goal is to better understand the variability in climate and vegetation green-up relationships as they vary seasonally and interannually and along the elevation and latitudinal gradients. Land surface phenological time series derived from the MODIS Normalized Difference Vegetation Index data from 2000 to 2010 were processed to characterize the interannual and seasonal variability among different sky islands in the Madrean Archipelago. Representative mountains among the sky islands and elevation clines showed unique recurring and interannual phenological trajectories and spatial patterns related to seasonality, drought, and some wildfire events. The start of the season was generally earlier for the higher elevations, while seasonal productivity generally increased with elevation.

Original languageEnglish (US)
Title of host publication34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring
StatePublished - 2011
Event34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring - Sydney, NSW, Australia
Duration: Apr 10 2011Apr 15 2011

Other

Other34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring
CountryAustralia
CitySydney, NSW
Period4/10/114/15/11

Fingerprint

Drought
Time series
Productivity
Trajectories

Keywords

  • Climate
  • Ecosystem
  • Environment
  • Geography
  • Land cover
  • MODIS

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Environmental Engineering

Cite this

van Leeuwen, W., & El Vilaly, M. A. (2011). Remotely sensed vegetation phenology of sky islands in the madrean archipelago. In 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring

Remotely sensed vegetation phenology of sky islands in the madrean archipelago. / van Leeuwen, Willem; El Vilaly, M. A.

34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

van Leeuwen, W & El Vilaly, MA 2011, Remotely sensed vegetation phenology of sky islands in the madrean archipelago. in 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring. 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring, Sydney, NSW, Australia, 4/10/11.
van Leeuwen W, El Vilaly MA. Remotely sensed vegetation phenology of sky islands in the madrean archipelago. In 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring. 2011
van Leeuwen, Willem ; El Vilaly, M. A. / Remotely sensed vegetation phenology of sky islands in the madrean archipelago. 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring. 2011.
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