Data Descriptor: Daily observations of stable isotope ratios of rainfall in the tropics

Niels C Munksgaard; Naoyuki Kurita; Ricardo Sánchez-Murillo; Nasir Ahmed; Luis Araguas; Dagnachew L Balachew; Michael I Bird; Supriyo Chakraborty; Nguyen Kien Chinh; Kim M Cobb; Shelby A Ellis; Germain Esquivel-Hernández; Samuel Y Ganyaglo; Jing Gao; Didier Gastmans; Kudzai F Kaseke; Seifu Kebede; Marcelo R Morales; Moritz Mueller; Seng Chee Poh; Vinícius Dos Santos; He Shaoneng; Lixin Wang; Hugo Yacobaccio; Costijn Zwart

doi:10.1038/s41598-019-50973-9

Data Descriptor: Daily observations of stable isotope ratios of rainfall in the tropics

Sci Rep. 2019 Oct 8;9(1):14419. doi: 10.1038/s41598-019-50973-9.

Authors

Niels C Munksgaard^{1

2}, Naoyuki Kurita³, Ricardo Sánchez-Murillo⁴, Nasir Ahmed⁵, Luis Araguas⁶, Dagnachew L Balachew⁶, Michael I Bird⁷, Supriyo Chakraborty⁸, Nguyen Kien Chinh⁹, Kim M Cobb¹⁰, Shelby A Ellis¹⁰, Germain Esquivel-Hernández⁴, Samuel Y Ganyaglo¹¹, Jing Gao¹², Didier Gastmans¹³, Kudzai F Kaseke^{14

15}, Seifu Kebede¹⁶, Marcelo R Morales¹⁷, Moritz Mueller¹⁸, Seng Chee Poh¹⁹, Vinícius Dos Santos¹³, He Shaoneng²⁰, Lixin Wang¹⁴, Hugo Yacobaccio¹⁷, Costijn Zwart⁷

Affiliations

¹ College of Science and Engineering, James Cook University, Cairns, Australia. niels.munksgaard@jcu.edu.au.
² Research Institute for Environment and Livelihoods, Charles Darwin University, Darwin, Australia. niels.munksgaard@jcu.edu.au.
³ Institute for Space-Earth Environmental Research (ISEE), Nagoya University, Nagoya, Japan.
⁴ Stable Isotopes Research Group and Water Resources Management Laboratory, Universidad Nacional, Heredia, Costa Rica.
⁵ Isotope Hydrology Division, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh.
⁶ Isotope Hydrology Section, International Atomic Energy Agency, Vienna, Austria.
⁷ College of Science and Engineering, James Cook University, Cairns, Australia.
⁸ Center for Climate Change Research, Indian Institute of Tropical Meteorology, Pune, India.
⁹ Department of Isotope Hydrology, Center for Nuclear Techniques, Ho Chi Minh City, Vietnam.
¹⁰ School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, USA.
¹¹ Isotope Hydrology Laboratory, National Nuclear Research Institute, Accra, Ghana.
¹² Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China.
¹³ Environmental Studies Center, São Paulo State University, Butanta, Brazil.
¹⁴ Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, USA.
¹⁵ Earth Research Institute, University of California Santa Barbara, Santa Barbara, California, USA.
¹⁶ Department of Earth Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
¹⁷ Inst. de Biodiversidad y Biología Experimental y Aplicada, Universidad de Buenos Aires, Buenos Aires, Argentina.
¹⁸ Faculty of Engineering, Computing & Science, Swinburne University of Technology, Kuching, Malaysia.
¹⁹ School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, Terengganu, Malaysia.
²⁰ Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore.

Abstract

We present precipitation isotope data (δ²H and δ¹⁸O values) from 19 stations across the tropics collected from 2012 to 2017 under the Coordinated Research Project F31004 sponsored by the International Atomic Energy Agency. Rainfall samples were collected daily and analysed for stable isotopic ratios of oxygen and hydrogen by participating laboratories following a common analytical framework. We also calculated daily mean stratiform rainfall area fractions around each station over an area of 5° x 5° longitude/latitude based on TRMM/GPM satellite data. Isotope time series, along with information on rainfall amount and stratiform/convective proportions provide a valuable tool for rainfall characterisation and to improve the ability of isotope-enabled Global Circulation Models to predict variability and availability of inputs to fresh water resources across the tropics.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.
Research Support, Non-U.S. Gov't