U.S. Geological Survey
2014
JPEG images of bottom samples collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (JPEG Images)
1.0
raster digital data
data release
DOI:10.5066/F71N7Z4H
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/F71N7Z4H
https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/
https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/data/imagery/2005-004-FA_bottomphotos.zip
Denny, J.F.
Danforth, W.W.
Worley, C.R.
Irwin, B.J.
2014
High-resolution geophysical and sample data collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005, USGS Field Activity 2005-004-FA
1.0
data release
DOI:10.5066/F71N7Z4H
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/F71N7Z4H
In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf water-milfoil forms dense beds that can alter the limnologic characteristics of a waterbody, impacting natural lacustrine communities and their habitats. Variable leaf water-milfoil infestations also disrupt recreational uses of waterbodies and have negatively affected swimming, boating, fishing, and property values in and around several lakes and ponds in New Hampshire.
In 1965, Moultonborough Bay, Lake Winnipesaukee became the first waterbody in New Hampshire where variable leaf water-milfoil was observed. Variable leaf water-milfoil is native to the Southeastern and Midwestern areas of the United States where more alkaline waters appear to limit the growth of this plant. Outside its native range, however, it adapts well to the relatively acidic, low-alkalinity, and nutrient-poor conditions of oligotrophic lakes and bays similar to Moultonborough Bay.
In 2005, the New Hampshire Department of Environmental Services (NHDES) collaborated with the U.S. Geological Survey to investigate the distribution (presence and density) of variable leaf water-milfoil in Moultonborough Bay. This study utilized geophysical systems and conventional water-quality measurements to identify lake-floor environments that may provide suitable habitat for the establishment and growth of variable leaf water-milfoil. The results of the study are intended to assist resource managers in federal and state agencies by providing methods for detecting variable leaf water-milfoil and for identifying areas susceptible to infestation. Ultimately, this information may lead to early detection, prevention, and more effective mitigation strategies.
Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov/fan_info.php?fa=2005-004-FA.
This data set includes the bottom photographs (JPEG images) collected within Moultonborough Bay, Lake Winnipesaukee, New Hampshire during USGS field activity 2005-004-FA. The bottom photographs were collected to ground-truth the geophysical data collected and used to characterize the surficial sediment and bottom habitat of the lakefloor.
20050727
20050728
ground condition
None planned
-71.390840
-71.359890
43.728250
43.712080
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Woods Hole Coastal and Marine Science Center
WHCMSC
Marine Geology
field activity number 2005-004-FA
USGS CMGP InfoBank ID R-1-05-NH
field activity number 05004
SEABOSS
SEABed Observation and Sampling System
bottom photographs
JPEG
R/V Rafael
ISO 19115 Topic Category
inlandWaters
location
geoscientificInformation
None
North America
United States
New Hampshire
Lake Winnipesaukee
Moultonborough Bay
None.
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543
USA
508-548-8700 x 2311
508-457-2310
jdenny@usgs.gov
https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/data/imagery/2005-004-FA_photosm.jpg
Thumbnail image of a bottom photograph collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
JPEG
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850
Denise M. Argue
Richard G. Kiah
Jane F. Denny
Jeffrey R. Deacon
William W. Danforth
Craig M. Johnston
Amy P. Smagula
2007
Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
1.0
document
Scientific Investigations Report
2007-5125
Reston, Virginia
U.S. Geological Survey
https://pubs.usgs.gov/sir/2007/5125/
D. Blackwood
K. Parolski
2001
Seabed observation and sampling system
1.0
document
Sea Technology
v. 42, no. 2, p. 39-43
Arlington, Virginia
Sea Technology
All bottom photographs were collected with the mini-SEABOSS (SEABed Observation and Sampling System) by the U.S. Geological Survey within the Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005.
Blackwood and Parolski, 2001
Forty sample locations were occupied, however bottom photographs were not collected at sample locations 1, 2, 7B and 20 due to equipment problems. The digital camera, at these locations, was not operating properly and we were not able to successfully image the lakefloor with a digital image.
Navigation was acquired with Wide Area Augmentation System ( WAAS), which is accurate to + or - 1 to 2 meters, horizontally. Navigation data were acquired with a Communications Systems International (CSI), Inc. LGBX Pro receiver. The CSI LGBX Pro received positions from a WAAS antenna located on the port, aft roof of the R/V Rafael cabin. WAAS positions were recorded within HYPACK (www.hypack.com) navigation software. Offsets between the DGPS antenna and the mini-SEABOSS were not measured. The horizontal position of the mini-SEABOSS during sample collection is assumed to be +/- 10 meters at best, due to a lack of precise positional data at the time of sample recovery.
U.S. Geological Survey
Unpublished Material
Sediment Textural Data
online
20050727
20050728
ground condition of field activity
none
The Mini SEABOSS was designed specifically for the USGS Woods Hole Science Center's 26-foot research vessel Rafael. This system is equipped with two video cameras, a digital still camera, and a Van Veen grab sampler. This system, weighing approximately 200 lbs., can be used to depths up to 40 meters. The grab itself is raised and lowered with a 3/16-inch Aramid fiber winch-line with a breaking strength of 5,600 pounds. The davit is secured when the Mini SEABOSS is in the water. The electrical cable is on a spring-wound take-up reel with electrical slip rings that is mounted aft of the sampler. This arrangement protects the 0.38-in. multi-conductor cable and keeps the Mini SEABOSS correctly oriented with the boat. This multi-conductor cable enables communication between the ship's lab and the Mini SEABOSS system. The digital camera, a Minolta Dimage 7Hi, is mounted in a machined Delrin housing with a flat port and is set for 2560 x 1920 pixel images at the "fine" setting for compression. This allows the camera to be used for over 200 images with a 1 GB Compact Flash card without downloading. The system also has a 50 Watt/second flash unit powered by 8 AA batteries. Two battery-powered lasers are set 15 cm apart for scale measurements. The red laser dots can usually be seen in the photo depending on the bottom type and the distance to the sea floor. A third battery powered laser is positioned at an angle so that when it intersects the other lasers, the Mini SEABOSS is at the optimum height off the bottom for a still photograph (optimal height is generally 75 cm above the bottom). The camera is set to a manual focus and set to a default focus distance (50 cm) once the camera is powered up. The default focus distance is slightly less than the optimum height above the seafloor to account for optical distortion under water.
Video images were collected at 40 sample locations and digital photographs were collected at 35 sample locations using the USGS Mini SEABOSS (Blackwood and Parolski, 2001). Mini SEABOSS stations were selected based on preliminary acoustic-backscatter mosaics, with the objective of characterizing broad areas of different backscatter intensity. With the Mini SEABOSS deployed, the research vessel was allowed to drift with occasional power from the vessel to control drift direction. Continuous video was collected over a total of 696 meters of lakefloor. Video drift position was derived from the HYPACK navigation files based on the start and end times of the drift. For some portions of the drift, there was no navigation, so the position was derived from the time and position stamp in the video at 30-s intervals. Latitude and Longitude for sample locations 1 and 8 were derived solely from the video as HYPACK was not recording.
Bottom photographs were collected with the mini SEABOSS (Blackwood and Parolski, 2001) at 35 sample stations in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005.
This and all subsequent processing steps (unless otherwise noted) were conducted by Jane F. Denny.
2005
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
The digital images were recorded on a compact flash card within the camera. Digital images were downloaded to a local disk and stored with a naming convention based on the station location. For example, sta11.jpg, is a bottom photograph collected at station (i.e. sample location) 11. Generally, only one bottom photograph was collected at each sample location.
2005
The photo locations (2005-004-FA_photos.shp - see metadata for how the file was created on https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/) were exported from ArcMap 9.3.1 using XTools Pro 7.1 as a comma-delimited text file. The attributes chosen for export were: LONG, LAT, YEAR, PICNAME, GPSTIME. The text editor VI v 7.3 was used to edit the year to include the calendar day in the format YYYYMMDD appropriate for the particular image. A PYTHON script (jane_write_exif.py) was then run that incorporated this information, along with additional information, into the appropriate locations in the EXIF header of each JPEG images. The PYTHON script uses exiftool (version 8.4.7.0) to write the information to the image headers.
The following tags were populated in the JPEG image headers. Information is duplicated in some tags. This was done because different software packages access different tags.
GPS tags: The values populated are unique for each image and based on the information exported from the photo locations shapefile.
>GPSLatitudeRef
>GPSLatitude
>GPSLongitudeRef
>GPSLongitude
>GPSTimeStamp
>GSPDateStamp
JPEG tags: The tag is listed along with the information used to populate it - which is the same for every image.
>Comment: Photo from down-looking camera on the USGS SEABOSS deployed from the R/V Rafael
>during survey 2005-004-FA (http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2005-004-FA)
>
EXIF tags: The tag is listed along with the information used to populate it - which is the same for every image.
>ImageDescription: Photograph of the lake floor in Lake Winnipesaukee, New Hampshire from survey 2005-004-FA
>Artist: Jane Denny
>Copyright: Public Domain - please credit U.S. Geological Survey
>
>
IPTC tags: The tag is listed along with the information used to populate it - which is the same for every image.
>Credit: U.S. Geological Survey
>Contact: WHSC_data_contact@usgs.gov
>Keywords: Lake Winnipesaukee, New Hampshire, 2005-004-FA, SEABOSS, lake floor, USGS
>CopyrightNotice: Public Domain - please credit U.S. Geological Survey
>Caption-Abstract: Photograph of the lake floor in Lake Winnipesaukee, New Hampshire from survey 2005-004-FA
>
>
XMP tags: The tag is listed along with the information used to populate it - which is the same for every image.
>Caption: Photograph of the lake floor in Lake Winnipesaukee, New Hampshire from survey 2005-004-FA.
2014
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543
USA
508-548-8700x2251
508-457-2310
vatnipp@usgs.gov
The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes.
20170406
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Raster
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
The file 2005-004-FA_bottomphotos.zip contains the JPEG images of the sea floor bottom photographs. In addition to the bottom photographs, the zip file also contains the browse graphic (2005-004-FA_photosm.jpg) and the FGDC CSDGM metadata in the following formats: XML, HTML, FAQ and text.
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
JPEG
1.0
JPEG File Format
Zip file containing bottom photographs collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata.
Use WinZip, 7zip, Peazip or pkUnzip
75
https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/data/imagery/2005-004-FA_bottomphotos.zip
https://cmgds.marine.usgs.gov/data/field-activity-data/2005-004-FA/
https://doi.org/10.5066/F71N7Z4H
Data can be downloaded via the World Wide Web (WWW)
none
This zip file contains data available in JPEG format. The zip file also contains associated metadata.
20170406
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time