IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
A Chronology of El Niño Events from Primary Documentary Sources in Northen Peru
Autor/es:
R. GARCIA-HERRERA,; H. F. DIAZ; R. GARCIA; M. R. PRIETO; D. BARRIOPEDRO; R. MOYANO; E. HERNANDEZ
Revista:
JOURNAL OF CLIMATE
Editorial:
American Meteorology Society
Referencias:
Lugar: Boston; Año: 2008 vol. 21 p. 1948 - 1962
ISSN:
0894-8755
Resumen:
The authors present a chronology of El Niño (EN) events based on documentary records from northern
Peru. The chronology, which covers the period 15501900, is constructed mainly from primary sources from
the city of Trujillo (Peru), the Archivo General de Indias in Seville (Spain), and the Archivo General de la
Nación in Lima (Peru), supplemented by a reassessment of documentary evidence included in previously
published literature. The archive in Trujillo has never been systematically evaluated for information related
to the occurrence of El NiñoSouthern Oscillation (ENSO). Abundant rainfall and river discharge correlate
well with EN events in the area around Trujillo, which is very dry during most other years. Thus, rain and
flooding descriptors, together with reports of failure of the local fishery, are the main indicators of EN
occurrence that the authors have searched for in the documents. A total of 59 EN years are identified in this
work. This chronology is compared with the two main previous documentary EN chronologies and with
ENSO indicators derived from proxy data other than documentary sources. Overall, the seventeenth
century appears to be the least active EN period, while the 1620s, 1720s, 1810s, and 1870s are the most active
decades. The results herein reveal long-term fluctuations in warm ENSO activity that compare reasonably
well with low-frequency variability deduced from other proxy data.