Arriving in the Galápagos
00 deg 45S
Longitude: 90 deg 18W
Wind Direction: S
Wind Speed: 10 Knots
Sea State 5
Swell(s) Height: 2-4 Foot
Sea Temperature: 70°F (21.1°C)
Barometric Pressure: 1015.1 MB
Visibility: 5 Nautical Miles
Eggs and potatoes
Bacon, ham and sausage
Cream of Wheat
OJ in a bucket
Cream of mushroom soup
Dinner in Puerto Ayora at a restaurant
in Spanish called Garripata, or the "Tick."
August 26, 2001
by Christina Reed
Last night we drove in circles, chasing the tail of the MR1 sonar
fish in order to calibrate its compass. By slowly making two
circles in opposite directions and monitoring the Revelle's gyro
compass in comparison to the internal compass on the MR1 we
were able to make sure the sonar was properly recording data.
We also towed the MR1 sonar over a flat area of seafloor north
of Genovesa Island. This will allow us to have a baseline that
we can refer to when processing the MR1 data to make bathymetric
maps. All of this preliminary testing work is important so
that the bathymetry and side-scan sonar maps we make will be
as accurate as possible.
But not all of the seafloor in this area is
smooth. Northeast of Genovesa there is a mysterious ridge that
we mapped with the multibeam sonar and MR1. As the data appeared
on the computer screens, we saw that more than 10 underwater
volcanic cones dot the crest of this nearly 40 kilometer-long
Karen Harpp was cautiously optimistic. It is definitely a complex volcanic
structure, she says. Some of the cones align along the crest of the
ridge which suggests that they may be the result of regional stresses. If
the cones are young they may have an origin similar to Genovesa. She's hoping
that we can do more mapping around this island and perhaps dredge up rocks from
the submarine ridge.
After breakfast, our test lowering of the MR1
sonar was completed and we recovered the sonar fish. As it was
hauled in, it surfed along behind the ship while we watched the
coastline of Santa Cruz Island appear out of the fog.
Captain Chris Curl has made arrangements with
the harbormaster for us to come ashore at Puerto Ayora, Santa
Cruz. A small boat, called a panga, will come out to where we
are anchored and pick us up. Puerto Ayora is the most populated
city in the Galápagos and each store and restaurant is named after an animal
found around or on the islands. Everyone is looking forward to seeing giant tortoises,
visiting the Charles Darwin Research Station, or going snorkeling. Tonight the
science party will meet up with the rest of our team joining us here in the Galápagos.
We plan to eat dinner at the Garripata, the Spanish word for Tick.
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