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  4. Analysis of remotely-sensed vegetation conditions during droughts and a mountain pine beetle outbreak, Gearhart Mountain Wilderness, Oregon

Analysis of remotely-sensed vegetation conditions during droughts and a mountain pine beetle outbreak, Gearhart Mountain Wilderness, Oregon

Dates

Publication Date

Citation

Cartwright, J.M., 2017, Analysis of remotely-sensed vegetation conditions during droughts and a mountain pine beetle outbreak, Gearhart Mountain Wilderness, Oregon: U.S. Geological Survey data release, https://doi.org/10.5066/F74Q7SWX.

Summary

This data release includes data-processing scripts, data products, and associated metadata for a remote-sensing based approach to characterize vegetation conditions within a dry, mixed conifer forest study area in southern Oregon in 2001 (a single year drought without any widespread insect mortality) and 2009 (during a multi-year drought that coincided with a severe outbreak of mountain pine beetle; MPB). This analysis involved several steps. First, time-series climate data were compiled and plotted to identify drought periods. Similarly, time-series data representing insect outbreaks were compiled and plotted to identify trends in insect mortality. The study area was classified into forest canopy types using existing modeled estimates [...]

Contacts

Author :
Jennifer M Cartwright
Land Resources :
USGS Mission Area
National Climate Adaptation Science Center :
SDC Data Owner
USGS Mission Area :
Land Resources
SDC Data Owner :
Climate Adaptation Science Centers

Attached Files

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model_data_metadata.xml
Original FGDC Metadata
View 		47.87 KB application/fgdc+xml
model_data.csv 3.66 MB text/csv
R_scripts.zip 59.83 KB application/zip
Shapefile: study_area.zip
study_area_metadata.xml
Original FGDC Metadata
View 		14.41 KB
study_area.cpg 5 Bytes
study_area.dbf 17.37 KB
study_area.prj 403 Bytes
study_area.sbn 732 Bytes
study_area.sbx 148 Bytes
study_area.shp 38.61 KB
study_area.shx 564 Bytes

Purpose

The processing scripts and data products presented here are intended to accompany and support a peer-reviewed journal article (in preparation) documenting the identification of refugia from drought and mountain pine beetle in a whitebark and lodgepole pine ecosystem. Drought and insect outbreaks are two primary disturbance processes linking climate change to tree mortality in western North America. Climate-change refugia are landscape locations that may be buffered against detrimental ecological effects of climate change and thus may be priorities for conservation, monitoring, and restoration. Knowledge of physiological effects of drought and mountain pine beetle attack combined with recent advances in understanding landscape drivers of microenvironmental conditions (e.g. spatial patterns in soil moisture) can be used to develop a set of hypotheses for where refugia may occur. The aim of this study was to evaluate these hypotheses by (1) identifying refugia using remotely-sensed vegetation characteristics, and (2) modeling the landscape controls (topographic, soil, and forest characteristics) on refugia locations.

Rights

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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Communities

  • National and Regional Climate Adaptation Science Centers
  • Northwest CASC
  • USGS Data Release Products
  • USGS Lower Mississippi-Gulf Water Science Center

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F74Q7SWX

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