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Introduction

Scientists working on the Hawaii Ocean Time-series (HOT) program have been making repeated observations of the hydrography, chemistry and biology of the water column at a station north of Oahu, Hawaii since October 1988. The objective of this research is to provide a comprehensive description of the ocean at a site representative of the North Pacific subtropical gyre. Cruises are made approximately once per month to the deep-water Station ALOHA (A Long-Term Oligotrophic Habitat Assessment; 22° 45'N, 158° 00'W) located 100 km north of Oahu, Hawaii. Measurements of the thermohaline structure, water column chemistry, currents, optical properties, primary production, plankton community structure, and rates of particle export are made on each cruise.

Videos
The 250th Expedition
HOT 25th Anniversary
Ocean 180 Video Challenge
Upcoming Cruises
  • ACO-4: Sep 15-20, 2015
  • HOT-276: Sep 21-25, 2015
  • HOT-277: Oct 12-16, 2015
  • HOT-278: Nov 12-16, 2015

Data Links
Request Sample Acquisition &/or Cruise Participation
Interactive Access to HOT Data (HOT-DOGS)
Cruise Schedules, Chief Scientist Reports & Cast Sheets
Yearly Data Reports
Analytical Methods & Results
Current Data Trends
Data Products

What's HOT
What's Happening at Station ALOHA
HYCOM MODIS APEX/ISUS CTD Drifters
HOTlocations 8497H SG146 SG512 SVP01 SVP02 SVP03 SVP04 Platform 1833 Platform 3028 Platform 60481 Platform 60482 Platform 60484 Platform 84857 ALOHA Map

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