[Image]

1999a
Cruise Description

The final research trip of the CRETM-LMER took
place in the summer of 1999, a high flow period.
This cruise leg immediately preceded the 1999b leg
and provided a direct comparison between ETM
dynamics in the Columbia River (extensively
controlled by dams) and the Fraser River
(essentially undammed). Two upstream series, two
long series, and one downstream series made up the
sampling schedule.

Vessels

1999 was the final of 10 trips aboard the R/V
Robert Gordon Sproul, a research vessel from
Scripps Oceanographic Institute in San Diego, CA.
Our sedimentological, geochemical, microbial and
ecological investigations were based on the
Sproul.

Geophysical investigations in 1999 were conducted
from the R/V Clifford Barnes.

Coding explanation for sampling series:

     Letter Code: U upstream; D downstream; N
     neap tide; S spring tide; L long series
     First Digit: Tidal Series
     Second Digit: Sequence in Tidal Series

     Example: U11 refers to the first
     sequence in the first upstream tidal
     series.

Sampling Series  Sampling Series  Dates
                 Locations
     U11         River Mile 53,   6/16/1999 -
                 Beaver Dock      6/17/1999
     L11                          6/17/1999 -
                 North Channel
                                  6/21/1999
     U21         River Mile 53,   6/22/1999 -
                 Beaver Dock      6/22/1999
     D11                          6/22/1999 -
                 Clatsop Spit
                                  6/23/1999
     L21                          6/24/1999 -
                 North Channel
                                  6/29/1999