TY  - JOUR
A1  - Marwan, Norbert
A1  - Schwarz, Udo
A1  - Kurths, Jürgen
A1  - Strecker, Manfred
T1  - ENSO Impact on landslide generation in northwestern Argentina
N2  - Climatic changes are of major importance in landslide generation in the Argentine Andes. Increased humidity as a potential influential factor was inferred from the temporal clustering of landslide deposits during a period of significantly wetter climate, 30,000 years ago. A change in seasonality was tested by comparing past (inferred from annual-layered lake deposits, 30,000 years old) and modern (present-day observations) precipitation changes. Quantitative analysis of cross recurrence plots were developed to compare the influence of the El Nino/Southern Oscillation (ENSO) on present and past rainfall variations. This analysis has shown the stronger influence of NE trades in the location of landslide deposits in the intra-andean basin and valleys, what caused a higher contrast between summer and winter rainfall and an increasing of precipitation in La Nina years. This is believed to reduce thresholds for landslide generation in the arid to semiarid intra-andean basins and valleys.
Y1  - 2000
SN  - 1029-7006
ER  - 
TY  - JOUR
A1  - Stolbova, Veronika
A1  - Surovyatkina, Elena
A1  - Bookhagen, Bodo
A1  - Kurths, Jürgen
T1  - Tipping elements of the Indian monsoon: Prediction of onset and
withdrawal
JF  - Geophysical research letters
N2  - Forecasting the onset and withdrawal of the Indian summer monsoon is crucial for the life and prosperity of more than one billion inhabitants of the Indian subcontinent. However, accurate prediction of monsoon timing remains a challenge, despite numerous efforts. Here we present a method for prediction of monsoon timing based on a critical transition precursor. We identify geographic regions-tipping elements of the monsoon-and use them as observation locations for predicting onset and withdrawal dates. Unlike most predictability methods, our approach does not rely on precipitation analysis but on air temperature and relative humidity, which are well represented both in models and observations. The proposed method allows to predict onset 2 weeks earlier and withdrawal dates 1.5 months earlier than existing methods. In addition, it enables to correctly forecast monsoon duration for some anomalous years, often associated with El Nino-Southern Oscillation.
Y1  - 2016
U6  - https://doi.org/10.1002/2016GL068392
SN  - 0094-8276
SN  - 1944-8007
VL  - 43
SP  - 3982
EP  - 3990
PB  - American Geophysical Union
CY  - Washington
ER  -