Keyphrases
North America
100%
Precipitation Seasonality
100%
Palmer Drought Severity Index
100%
Drought Atlas
100%
Drought Reconstruction
75%
Drought
50%
El Nio
50%
Tree Rings
50%
Winter Precipitation
50%
Seasonal Precipitation
50%
Tree Growth
25%
Geographical Differences
25%
Tree-ring Data
25%
Western Canada
25%
Southern Oscillation
25%
Relative Strength
25%
Teleconnections
25%
Southwestern United States
25%
Drought-sensitive
25%
Precipitation Anomalies
25%
Instrumental Records
25%
Influence Tree
25%
Local Factors
25%
Northern Mexico
25%
Northwestern North America
25%
Seasonal Bias
25%
Regional Climatology
25%
Tree-ring Reconstruction
25%
Geographic Patterns
25%
Force Mechanism
25%
Indexing Algorithm
25%
MTex
25%
Earth and Planetary Sciences
Seasonality
100%
Tree rings
100%
North America
50%
United States
25%
Canada
25%
Mexico
25%
Southern Oscillation
25%
Teleconnection
25%
Regional Climatology
25%
Continent
25%
Agricultural and Biological Sciences
Americans
100%
Palmer Drought Severity Index
100%
Tree Growth
25%