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Exploring spatial patterns of trends in monthly rainfall and temperature in the Philippines based on Climate Research Unit grid

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Abstract

This study assessed spatial pattern of trends in monthly rainfall and temperature in the Philippines using Climate Research Unit time series data. Based on the results, there are significant trends in monthly rainfall and temperature in the country. On the average, monthly rainfall in the country is increasing by 0.34 mm/year. In the case of monthly temperature, the average increases per year were 0.008 and 0.019 °C, for maximum and minimum temperature, respectively. In terms of proportion, larger portion of the country showed significant trends in monthly temperature (> 80%) compared to rainfall (< 10%). Shift in wettest, driest, warmest, and coldest months were also observed between the periods of 1951–1980 to 1986–2015.

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  1. https://crudata.uea.ac.uk/cru/data/hrg/.

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Acknowledgements

The corresponding author would like to thank the Department of Science and Technology, Accelerated Science and Technology Human Resource Development Program-National Science Consortium-University of the Philippines Los Baños (DOST ASTHRDP-NSC-UPLB) for the financial support for his Doctoral study.

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Authors and Affiliations

  1. Department of Community and Environmental Resource Planning, College of Human Ecology, University of the Philippines Los Baños, Los Banos, 4031, Laguna, Philippines

    Arnold R. Salvacion

  2. Institute of Biological Sciences, College of Arts and Sciences, University of the Philippines Los Baños, Los Banos, Philippines

    Damasa B. Magcale-Macandog

  3. Institute of Crop Science, College of Agriculture and Food Science, University of the Philippines Los Baños, Los Banos, Philippines

    Pompe C. Sta. Cruz

  4. Agrometeorology and Farm Structures Division, Institute of Agricultural Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Los Banos, Philippines

    Ronaldo B. Saludes

  5. Institute of Weed Science, Entomology and Plant Pathology, College of Agriculture and Food Science, University of the Philippines Los Baños, Los Banos, Philippines

    Ireneo B. Pangga & Christian Joseph R. Cumagun

  6. School of Environmental Science and Management, University of the Philippines Los Baños, Los Banos, 4031, Laguna, Philippines

    Arnold R. Salvacion

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  1. Arnold R. Salvacion
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Correspondence to Arnold R. Salvacion.

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Salvacion, A.R., Magcale-Macandog, D.B., Sta. Cruz, P.C. et al. Exploring spatial patterns of trends in monthly rainfall and temperature in the Philippines based on Climate Research Unit grid. Spat. Inf. Res. 26, 471–481 (2018). https://doi.org/10.1007/s41324-018-0189-8

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