| Identifier | D0112PS | ||||||||
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| Alternate names | D-01-12-PS | ||||||||
| Purpose | Make a vegetation map of eelgrass in the Nisqually Delta | ||||||||
| Description | United States Geological Survey, Pacific Science Center,Washington State Department of Ecology. Chief Scientist: Renee Takesue. Geophysical data of field activity D-01-12-PS in Nisqually River Delta, South Puget Sound, Washington from 02/15/2012 to 02/21/2012 | ||||||||
| Location | Washington | ||||||||
| Info derived | Spatial distribution of eelgrass in the Nisqually Delta | ||||||||
| Comments | data on internal backup 2012/D-01-12-PS/rawdata Staff information imported from InfoBank Renee Takesue (PCMSC, ) Andrew Stevens (PCMSC, ) Eric Grossman (USGS PCMSC) - Geologist George Kaminsky (Wash. State Dept. of Ecology) - Coastal Engineer Heather Baron (Wash. State Dept. of Ecology) - Coastal Scientist Andrew Ryan (Wash. State Dept. of Ecology) - Field Technician Brian Pickering (Wash. State Dept. of Ecology) - Boat Captain | ||||||||
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| Activity | Geophysical |
| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Renee K Takesue | ||||||
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| Affiliate staff | George Kaminsky (Wash. State Dept. of Ecology) - Coastal Engineer,Heather Baron (Wash. State Dept. of Ecology) - Coastal Scientist,Andrew Ryan (Wash. State Dept. of Ecology) - Field Technician,Brian Pickering (Wash. State Dept. of Ecology) - Boat Captain |
| Data category: | Imagery, Location-Elevation, Sonar |
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| Data type: | Video, Navigation, Single Beam |
| Equipment | Usage description | Data types | Datasets |
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| Camera-video | Photo, Video | 1 | |
| GPS | Navigation | 1 | |
| single beam sonar 180-280KHz | Single Beam | 1 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Eelgrass distributions derived from a towed underwater video survey of the Nisqually River delta, 2012 | Camera-video | This portion of the USGS data release presents eelgrass distributions derived from towed underwater video surveys of the Nisqually River delta, Washington in 2012 (USGS Field Activity Number D-01-12-PS). Eelgrass data were collected from the R/V George Davidson equipped with a towed underwater video system and global navigation satellite system (GNSS) receiver. The underwater video system consisted of a Splashcam standard definition video camera connected to a Sony GV-D1000 video monitor and tape recorder. Positioning of the survey vessel was determined at 1 Hz intervals using a Trimble R7 GNSS receiver and Trimble Zephyr Model 2 antenna. The positioning data from the GNSS were encoded onto the audio track of the digital video recording using Red Hen Systems (RHS) VMS200 hardware. Underwater video data were recorded as the vessel navigated along a series of shore-perpendicular transects at speeds between 1 and 2 knots. The underwater video recording was later reviewed and the presence or absence of eelgrass was determined for each 1-s segment of video tape. These data were used to evaluate the classification of single-beam sonar data acquired during the same time period. | Andrew Stevens |
| Global positioning system (GPS) data d-01-12-ps.064 | GPS | Provisional best file | Andrew Stevens |
| Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2012 | single beam sonar 180-280KHz | This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2012 (USGS Field Activity Number D-01-12-PS). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. | Andrew Stevens |
