Ship Rates

Explanation of usage rates

Research vessel usage rates are calculated to include crew, fuel, food, standard shipboard technical services and limited port logistics. To obtain a quote for ship rates and discuss ship availability, contact Scripps's Ship Scheduling Office.

Projected Rate

Projected rates are used to estimate costs for ship time in following calendar years. Due to the long lead times and volatility of costs, projected rates may differ from provisional and final rates.

Provisional Rate

Federal law requires that we charge all federal users the same rate for the same service.  The federal day rate is determined as the actual operating costs for the year, divided by the number of operating days.

Because a final rate cannot be known until the end of the year, we charge users a provisional rate at the time of their cruise, which is based on our best estimate of our anticipated costs and number of ship days. At the end of the year we calculate an actual (final) rate, and ship users are issued an invoice to settle their account.

Fixed Rates

To eliminate the uncertainty inherent in provisional rates, we offer the option of using a fixed rate (as opposed to the provisional rate) for ship time. The fixed rate enables transactions to be completed without having to wait until the end of the calendar year for a final invoice.

Smallest billable unit

SIO observes the standard UNOLS practice of charging ship use per operating day, which is any calendar day or fractional calendar day at sea or away from home port. 

Departure and arrival times: Roger Revelle and Sally Ride

When operating from San Diego, SIO vessels depart port at 0800 and arrive at 1600.

For all other ports, SIO vessels depart at 1600 and arrive at 0800.

Departure and arrival times: Robert Gordon Sproul

R/V Robert G. Sproul is billed on a 24-hour day basis (as opposed to a calendar day basis), with a one day minimum.

For example, a trip that departs San Diego at 0800 and returns the following calendar day at 0700 will be billed for one day's use. 

For any questions please call the SIO Ship Scheduling Office (858) 534-2841.

Bruce Appelgate, PhD
Associate Director, SIO

Steve Carter
Manager, Office of  Contract and Grant Administration, SIO