Collocated QuikSCAT and Research Vessel Winds
General Description
High temporal resolution winds from automated weather systems are vector averaged, quality controlled, and collocated with QuikSCAT winds.
Anticipated Data
|
Tentative Research Vessels |
Tentative Cruise Dates |
Tentative Cruise Locations |
Delay |
Temporal Resolution |
Data |
|
R/V Atlantis |
7/08 - 7/18 |
Oregon margin and |
4-6 weeks |
1 min |
Data Graphics |
|
7/17 - 8/18 |
Gulf of Alaska |
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|
8/23 - 9/7 |
NE Pacific |
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|
9/12 - 10/1 |
NE Pacific |
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|
10/4 - 10/9 |
Pacific Transit |
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|
11/10 - 12/28 |
Eastern Pacific |
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|
RSVAurora Australis |
7/12 - 9/8 |
Southern Ocean |
4-6 weeks |
12 sec ? |
Data Graphics |
|
10/2 - 11/12 |
Southern Ocean |
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|
R/V Knorr |
Available but unscheduled |
TBA |
4-6 weeks |
1 min |
Data Graphics |
|
R/V Melville |
7/7 - 8/2 |
N E Pacific |
4-6 weeks |
1 min |
Data Graphics |
|
8/5 - 8/15 |
NE Pacific |
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|
7/7 - 8/2 |
NE Pacific |
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|
8/5 - 8/15 |
Off Sur Point |
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|
8/16 - 8/18 |
Transits |
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|
8/19 - 10/25 |
Transits and Eel River Basin |
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|
8/19 - 10/25 |
Transits and Eal River Basin |
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|
9/2 - 9/23 |
Off Oregon |
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|
10/1 - 10/20 |
Off Baja |
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|
10/29 - 11/22 |
Off Baja |
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|
11/23 - 1/30 |
Overhaul |
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|
R/V Meteor |
4/10 - 5/16 |
Haifa to Malaga |
4-6 weeks |
1 min |
Data Graphics |
|
5/19 - 6/8 |
Malaga to Lissabon |
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|
6/11 - 7/8 |
Lissabon - St. Johns |
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|
7/11 - 8/13 |
St. Johns to Reykjavik |
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|
8/15 - 9/2 |
Reykjavik to Hamburg |
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|
9/2 - 9/30 |
Hamburg to Bremen |
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|
R/V Oceanus |
7/6 - 7/11 |
NW Atlantic |
4-6 weeks |
1 min |
Data Graphics |
|
8/1 - 8/7 |
Georges Bank |
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|
8/11 - 8/20 |
NW Atlantic |
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|
8/25 - 9/3 |
Georges Bank |
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|
9/10 - 9/16 |
Georges Bank |
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|
9/20 - 10/6 |
Sargasso Sea |
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|
9/20 - 10/6 |
Gulf of ME |
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|
9/20 - 10/6 |
NY Bight |
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|
9/20 - 10/6 |
Transit near 36N |
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|
Polarstern |
5/12 - 6/8 |
Capetown to Bremerhaven |
4-6 weeks |
1 min |
Data Graphics |
|
6/23 - 8/15 |
Bremerhaven, Greenland Sea, Tromsoe |
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|
8/17 - 10/15 |
Tromsoe, Arctic Ocean, Bremerhaven |
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|
10/16 - 12/14 |
Dock |
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|
R/V Roger Revelle |
6/24 - 7/17 |
Japan East Sea |
4-6 weeks |
1 min |
Data Graphics |
|
7/22 - 8/9 |
Pacific Transits |
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|
8/12 - 8/30 |
Pacific Transits |
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|
9/3 - 9/29 |
Pacific Transits |
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|
10/4 - 10/7 |
Pacific Transits |
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|
10/9 - 10/22 |
Korea-Tsushima Str |
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|
10/24 - 10/30 |
Japan East Sea |
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|
10/31 - 12/23 |
Drydock |
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|
R/V Ron Brown |
5/20 - 6/13 |
NE Pacific |
4-6 weeks |
1 min |
Meta-data Data Graphics |
|
R/V Thomas G. Thompson |
6/17 - 7/14 |
Juan de Fuca |
4-6 weeks |
1 min |
Data Graphics |
|
7/27 - 8/14 |
N California coast |
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|
8/15 - 8/20 |
NE Pacific |
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|
8/25 - 9/6 |
Juan de Fuca |
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|
9/7 - 9/16 |
Juan de Fuca |
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|
9/17 - 9/18 |
Juan de Fuca |
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|
9/19 - 9/23 |
Transit |
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|
9/24 - 10/3 |
H2O Observatory |
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|
10/4 - 10/8 |
Transit |
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|
10/10 - 10/29 |
Columbia River |
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|
11/12 - 11/14 |
Puget Sound |
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|
11/19 - 12/3 |
Transit |
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|
12/20 - 12/23 |
Transit and Puget Sound |
Collocation Criteria
For each collocation, the ship and QuikSCAT observations are coincident within 25km and 30 minutes.
Delay and Quality Control
The delay is measured either from the time the ship returns to a port or transmission from the vessels. The cost and time required to transmit the data via satellite can be prohibitive, in which case the data are sent to us through mail or FTP. We are attempting to arrange more timely transmissions of lower time resolution data (times given in brackets). Sometimes these data sets are stored in formats well described as cryptic. We must convert the data files to a usable form. The data then passes through a two level quality control process. The first level is automated, designed to catch physical impossibilities and flag unlikely values. The second stage is a visual examination, designed to spot systematic errors and evaluate the data flagged as questionable. A paper detailing this quality control, and demonstrating its value, is in review.
Averaging of Research Vessel Observations
The temporal resolution of the wind records range from 12 seconds to ten minutes. When possible these are averaged for a period preceding the QuikSCAT observation. Furthermore, in many cases, the observations that went into the records we receive are averages. When known, these averaging techniques will also be described.
Data Set Content
The data sets will be restricted to the closest collocation in space within 30 minutes of the satellite observation. The data sets will contain scatterometer wind speed and direction, cell location information, ship winds adjusted to equivalent neutral 10 m winds, the original true winds (i.e., earth relative, with directions referenced to true North) calculated from the ship observations, and the data used in the conversion to equivalent neutral winds.
Data Format
Detailed descriptions of the data content and format, units, and variable declarations for each data file.
Meta-Data
Key information such as the height of the instruments.
Read Programs
The collocated data files are stored in an ASCII format.
