Abstract
The time series of water level of Titicaca Lake (TL) was compared to the time series of the Pacific Decadal Oscillation (PDO) and El Ni?o/Southern Oscillation (ENSO) indexes between 1914 and 2014 and 1969 and 2014, monthly and daily, respectively. Results indicate TL water level decreased (increased) during positive (negative) PDO phases. ENSO positive (negative) phase results were similar. Positive (negative) PDO and ENSO phases yielded negative (positive) precipitation anomalies and concomitant decrease (increase) of TL water level. These long-term relationships among TL water levels and both oceanic indexes can be useful and prognostic.
Highlights
The Peruvian Altiplano Region (PAR) is a high plateau at 3800 m altitude surrounded by the western and eastern ranges of the Andes Cordilleras
The analysis of the behavior of Lake Titicaca, for the period from 1914 to 2014 by spectral analysis of the Titicaca Lake (TL), shows a period of variability of 12 years that was associated with the Pacific Decadal Oscillation (PDO) climate index
The results indicate an inverse relationship between TL and PDO, with the increase in NLTs being related to the negative phase of PDO
Summary
The Peruvian Altiplano Region (PAR) is a high plateau at 3800 m altitude surrounded by the western and eastern ranges of the Andes Cordilleras. TL water level has been reduced gradually from its normal level [2] [3]. The water level varied 5 m between extremes between 1944 (3806.7 m) and 1986 (3811.6 m). TL main water sources are over the lake rainfall (47%) and tributaries inflows (35%), especially from Ramis River [4], while the main water sinks are over the lake evaporation (91%) and outflow from Desaguadero River (9%). The surface lake temperature fluctuates between 7 ̊C and 10 ̊C [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
