To support a long-term NOAA Coral Reef Conservation Program (CRCP) for sustainable management and conservation of coral reef ecosystems, reef fish assessment surveys are conducted as part of Rapid Ecological Assessments (REA) during Pacific Reef Assessment and Monitoring Program (Pacific RAMP) cruises in the Main Hawaiian Islands region by the NOAA Pacific Islands Fisheries Science Center (PIFSC). REA is a useful method for gathering data pertaining to ecologically significant biological components of a reef habitat over small spatial scales.

Within the depth limits of safe, no-decompression SCUBA diving (generally to 90 feet depth), NOAA-certified Pacific Islands Fisheries Science Center (PIFSC) divers conduct towed diver surveys (TDS) as a method of assessing relatively large areas of reef habitat. This method involves towing two divers (one collecting fish data, the other collecting benthic data) behind a small surface craft that is moving at a velocity of 1-2 mph.

Multi-hazard inundation around Honolulu. The study area includes the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu. Shows inundation from the following two hazards:

1) Tsunami Run-Up Inundation

Multi-hazard inundation around Honolulu, Hawaii resulting from future sea level rise. The study area includes the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu. Shows inundation from the following three hazards:

1) Sea Level Rise Inundation: 1-m Scenario

Multi-hazard inundation around Honolulu, Hawaii resulting from future sea level rise. The study area includes the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu. Shows inundation from the following three hazards:

1) Sea Level Rise Inundation: 0.5-m Scenario

Computer model simulation of hurricane storm surge inundation around Honolulu, Hawaii using current sea level at mean higher high water (MHHW) as its baseline water level. The study area includes the urban corridor stretching from Pearl Harbor to Waikiki and Diamond Head along the south shore of the island of Oahu.

Computer model simulation of hurricane storm surge inundation around Honolulu, Hawaii including one meter of sea level rise at mean higher high water (MHHW) as its baseline water level. The study area includes the urban corridor stretching from Pearl Harbor to Waikiki and Diamond Head along the south shore of the island of Oahu.

Computer model simulation of hurricane storm surge inundation around Honolulu, Hawaii including half a meter of sea level rise at mean higher high water (MHHW) as its baseline water level. The study area includes the urban corridor stretching from Pearl Harbor to Waikiki and Diamond Head along the south shore of the island of Oahu.

The single value tidal water surface of mean higher high water (MHHW) modeled at the Honolulu tide gauge is used to represent present-day sea level for the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu in the state of Hawaii. Water levels are shown as they would appear during the highest high tides (excluding wind-driven tides). Land elevation was derived using a National Geospatial Agency (NGA)-provided digital elevation model (DEM) based on LiDAR data of the Honolulu area collected in 2009.

This map shows coastal flooding around Honolulu, Hawaii due to 1 foot (0.305 m) of sea level rise. This scenario was derived using a National Geospatial Agency (NGA)-provided digital elevation model (DEM) based on LiDAR data of the Honolulu area collected in 2009. This "bare earth" DEM (vegetation and structures removed) was used to represent the current topography of the study area above zero elevation for the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu.