Premium
An ENSO predictor of dust emission in the southwestern United States
Author(s) -
Okin Gregory S.,
Reheis Marith C.
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl014494
Subject(s) - el niño southern oscillation , anomaly (physics) , precipitation , climatology , percentile , environmental science , la niña , arid , atmospheric sciences , meteorology , geography , geology , physics , statistics , paleontology , mathematics , condensed matter physics
Here we show that there is a significant relationship between Nino 3.4 ENSO anomaly (Dec–Jan average) and precipitation in the southwestern United States. This contributes to increased frequency of dust events in the years following strong La Niña and El Niño years. High probabilities (60%–100%) exist for an elevated frequency of dust events in years when the ENSO anomaly, annual precipitation, or annual P/PE falls below the 10th percentile. This analysis provides a quantitative framework in which to evaluate the expected effects of climate change on this and other arid regions.