Current Research

 

Rapid ‘Ohi’a Death (ROD)

SDAV is currently monitoring the spread of Ceratocystis fimbriata, also known as Rapid ʻŌhiʻa Death (ROD), is a newly identified exotic strain of fungus that is killing native trees ʻŌhiʻa (Metrosideros polymorpha). We are collecting repeat high-resolution videos/imagery from UAS platforms to asses progression rates and spatial patterns of tree mortality associated with ROD. Future work with hyperspectral remote sensing may allow us to identify infected trees before symptoms becomes visible. Click the image to left to watch an overflight video of ROD! For more information on ROD, please visit: http://www2.ctahr.hawaii.edu/forestry/disease/ohia_wilt.html
Spatial Data Analysis and Visualization Labs

University of Hawaiʻi at Hilo

Miconia

We are researching the effectiveness of using UAS platforms in the fight against non-native weeds, including miconia (Miconia calvescens). Miconia is an invasive noxious weed found throughout the main Hawaiian Islands that shades out native plant species and quickly takes over a forest to create an invasive monotypic forest.

Maunakea Summit Erosion  

Maunakea is a dormant shield volcano that reaches 4,205 meters on the island of Hawai’I that is undergoing both natural and anthropogenic erosion. SDAV created a baseline high-resolution topographic dataset of the summit area and is using repeat terrestrial LiDAR and UAV imagery to quantify and monitor erosion rates to better aid mangement practices.

Outplant Growth at Keaukaha Military Reservation  

Native lowland wet forests in Hawai’i are disappearing due to aggressive invasive species dominating the forest. SDAV assisted Dr. Rebecca Ostertag (UH Hilo Biology) by developing bare earth digital elevation models and approximated surface roughness to characterize terrain as it relates to outplant growth in experimental plots. This information will be compared to the 'liko nā pilina' database to determine if ʻaʻā lava field roughness effects outplant growth.

Coastal Erosion and Shoreline Change

Erosion and sea-level rise are a constant threat to natural and residental areas of Hawai`i Island. SDAV is looking at three different coastal geomorphic settings: calcareous beaches, cliffs, and subsiding lava fields, through remote sensing techniques to quantify historic and contemporary change in shorelines and improve local coastal zone management.
© 2016 University of Hawaiʻi at Hilo 200 W. Kāwili St., Hilo, HI 96720-4091 • Tel: (808) 932-7446 or 1-800-897-4456 • Fax: (808) 932-7459 The University of Hawaiʻi at Hilo is a campus of the University of Hawaiʻi System. An Equal Opportunity/Affirmative Action Institution. Request more information about UH Hilo • Website Privacy & Policies

Pu`uhonua O Hōnaunau UAS Survey

We recently partnered with the National Park Service to conduct UAS flights over Puʻuhonua o Hōnaunau National Historical Park, an area with a culturally and historically important stand of palm trees in decline due to a suspected fungal disease. SDAV employed both optical and a hyperspectral sensors.
Current Research

 

© 2016 University of Hawaiʻi at Hilo 200 W. Kāwili St., Hilo, HI 96720-4091 • Tel: (808) 932-7446 or 1-800-897-4456 • Fax: (808) 932-7459 The University of Hawaiʻi at Hilo is a campus of the University of Hawaiʻi System. An Equal Opportunity/Affirmative Action Institution. Request more information about UH Hilo • Website Privacy & Policies

Rapid ‘Ohi’a Death(ROD)

Rapid ʻŌhiʻa Death, a newly discovered disease, is quickly infecting and killing endemic ʻōhiʻa trees on the island of Hawai`i. SDAV is working to understand if short, repeat interval high spatial resolution (~5cm) mapping of ROD-affected areas provide any valuable insights into its’ spread or control. We have been gathering high resolution images and video over a 450 acre study site since February, 2016. For more information on ROD, please visit: http://www2.ctahr.hawaii.edu/forestry/disease/ohia_wilt.html

Miconia

We are researching the effectiveness of using UAS platforms in the fight against non-native weeds, including miconia (Miconia calvescens). Miconia is an invasive noxious weed found throughout the main Hawaiian Islands that shades out native plant species and quickly takes over a forest to create an invasive monotypic forest.

Maunakea Summit Erosion  

Maunakea is a dormant shield volcano that reaches 4,205 meters on the island of Hawai’I that is undergoing both natural and anthropogenic erosion. SDAV created a baseline high-resolution topographic dataset of the summit area and is using repeat terrestrial LiDAR and UAV imagery to quantify and monitor erosion rates to better aid mangement practices.

Coastal Erosion and Shoreline Change

Erosion and sea-level rise are a constant threat to natural and residental areas of Hawai`i Island. SDAV is looking at three different coastal geomorphic settings: calcareous beaches, cliffs, and subsiding lava fields, through remote sensing techniques to quantify historic and contemporary change in shorelines and improve local coastal zone management.

Pu`uhonua O Hōnaunau UAS Survey

We recently partnered with the National Park Service to conduct UAS flights over Puʻuhonua o Hōnaunau National Historical Park, an area with a culturally and historically important stand of palm trees in decline due to a suspected fungal disease. SDAV employed both optical and a hyperspectral sensors.

Outplant Growth at Keaukaha Military

Reservation  

Native lowland wet forests in Hawai’i are disappearing due to aggressive invasive species dominating the forest. SDAV assisted Dr. Rebecca Ostertag (UH Hilo Biology) by developing bare earth digital elevation models and approximated surface roughness to characterize terrain as it relates to outplant growth in experimental plots. This information will be compared to the 'liko nā pilina' database to determine if ʻaʻā lava field roughness effects outplant growth.