UH launches revolutionary climate data portal


University of Hawaiʻi
Maria E Dumanlang, (808) 956-3503
EPSCoR Communications Specialist, IT Services, Cyberinfrastructure
Kelli Abe Trifonovitch, (808) 228-8108
Chief Communications Officer, UH Office of Communications
Posted: Mar 3, 2022

Rain gauge located at high elevation on East Maui
Rain gauge located at high elevation on East Maui
Climate station located at Lyon Arboretum.
Climate station located at Lyon Arboretum.
Ryan Longman, ‘Ike Wai researcher and East-West Center fellow
Ryan Longman, ‘Ike Wai researcher and East-West Center fellow

Link to video and sound (details below): https://bit.ly/3IFLdob

Knowledge of climate patterns is critically important for a variety of resource management issues, including groundwater and surface water development and protection, controlling and eradicating invasive species, protecting and restoring native ecosystems, and planning for the effects of global warming. Resource managers, climate researchers, educators and students have a powerful new tool with the launch of the Hawai‘i Climate Data Portal (HCDP).

In support of closing data gaps and providing easy public access to climate data and information for the state, the University of Hawai‘i’s Hawai‘i Established Program to Stimulate Competitive Research (Hawai‘i ESPCoR) ‘Ike Wai project and the Hawaiʻi Data Science Institute have partnered with the UH Water Resources Research Center (WRRC) and East-West Center on this online open-source platform that hosts a wide range of data products, climate tools and resources. 

“The Hawaiʻi Climate Data Portal provides streamlined access to high-quality reliable data and information that can be utilized by a range of stakeholders and be incorporated into near-real-time planning activities and management decisions,” said East-West Center Fellow and ʻIke Wai researcher Ryan Longman, who worked on the development of the portal with a team of about 20 from across UH and the community.

Demonstrating the portal’s power

After almost a decade of development, the HCDP launched on March 3, 2022, during a Hawaiʻi EPSCoR and Hawaiʻi Data Science Institute virtual event. Longman, WRRC director and ʻIke Wai project co-investigator Thomas Giambelluca, Sean Cleveland, lead software engineer from UH Information Technology Services, and a team of climate and data scientists who contributed to the development of the HCDP, demonstrated the data, tools and information available through the portal. These included the data visualization and download tool, Indigenous climate knowledge perspectives, and a variety of gridded climate products.

Climate data available through the HCDP:

  • More than 100 years of monthly rainfall maps 

  • Daily temperature maps spanning 30 years 

  • Climate map visualization and download tools

  • A library of related journal publications and reports

  • Climate research highlights

  • Information on Indigenious knowledge and climate perspectives

  • Links to decision support tools and resources

  • A range of other variables and products updated in near-real-time.

Fire risk, drought forecasting in the future

In the near future, the HCDP will host data from the Hawaiʻi Mesonet project which will deploy more than 90 climate stations statewide. Other features under development include near-real-time fire risk and early warning, drought forecasting and an avian malaria risk warning tool. 

“Improving weather and climate monitoring in Hawai‘i through the Hawai‘i Mesonet and providing easy access to the data and data products through the HCDP will revolutionize Hawai‘i-based research across a broad range of disciplines and provide much needed information to resource managers, emergency response agencies, decision makers and Hawai‘i residents,” said Giambelluca.

Future features are being supported by the Hawai’i Emergency Management Agency and the National Oceanic and Atmospheric Administration. 

More information on the HCDP and related UH research can be found on http://hawaii.edu/epscor.


BROLL: (1 minute, 52 seconds)

0:00-1:22 - Shots of Hawai‘i Climate Data Portal

1:22-1:28 - Water sampling

1:28-1:52 - Shots of weather and water


Ryan Longman, ‘Ike Wai researcher (10 seconds)

“A lot of resource managers are mobilizing to figure out how they are going to adapt to climate change, and having data easily accessible can help you make management decisions.”

Longman (17 seconds)

“The Hawai‘i Climate Data Portal is designed to give users easy access to a wide range of climate data and information in Hawai‘i from publications, to access to tools, to actual real-time rainfall and temperature maps and time series data.”