Publications by authors named "M H Masiokas"
Article Synopsis
- South American societies are vulnerable to climatic changes due to insufficient long-term climate data, but recent advancements in tree ring chronologies have created a comprehensive network of 286 records that track hydroclimate variability since 1400 CE.
- The South American Drought Atlas (SADA) has been developed using this data alongside the self-calibrated Palmer Drought Severity Index, providing the most detailed hydrological reconstruction for the region and correlating well with historical climate events.
- The SADA reveals that El Niño-Southern Oscillation (ENSO) and Southern Annular Mode (SAM) strongly influence droughts and rainfall variability, with the analysis indicating an increasing trend towards severe droughts and extreme rainfall in South America linked to climate change and greenhouse
The rivers originating in the southern Andes (18°-55°S) support numerous ecosystems and a large number of human populations and socio-economic activities in the adjacent lowlands of Chile, Argentina and Bolivia. Here we show that ca. 75% of the total variance in the streamflow records from this extensive region can be explained by only eight spatially coherent patterns of variability.
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