Journal
ATMOSPHERE
Volume 11, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/atmos11080772
Keywords
APHRODITE; precipitation; accumulation period; GSOD; CMORPH; ERA-Interim
Funding
- Environment Research and Technology Development Fund of the Environmental Restoration and Conservation Agency (ERCA), Japan [2-1602]
- Hirosaki University Institutional Fund, Bilateral programs with Turkey by Japan Society for Promotion of Science (JSPS)
- Japan Science and Technology Agency (JST)
- Sakura Science program
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Several versions of Asian Precipitation-Highly-Resolved Observational Data Integration Towards Evaluation of Extreme Events (APHRODITE-2) have been released for analyzing rain-gauge-based daily precipitation. APHRODITE-2 constitutes an improvement compared with the previous versions for evaluating extreme precipitation. One advantage of APHRODITE-2 products (versions 1801R1 and 1901) over APHRODITE-1 products is the ability to ensure uniformity in the daily accumulation period (end of the day, EOD) used in a specific domain. To create these EOD segregated or EOD adjusted products, we applied an EOD judgment scheme using multi-satellite merged precipitation products CMORPH V1.0 and ERA-Interim reanalysis. The novelty of the current methodology was tested against rain-gauge datasets with known EOD information. Despite the difference in horizontal resolution, ERA-Interim shows similar EOD detection performance to CMORPH. However, CMORPH showed better performance over India than ERA-Interim. The current method has potential to judge EOD of rain-gauge station data with an unknown observation time. Having prior EOD information as metadata is very important for gridded datasets as well as station data. Here, we also present deterministic/estimated EOD that we used for V1801R1 over Monsoon Asia.
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