High-resolution geophysical and sample data collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005, U.S. Geological Survey Field Activity 2005-004-FA

Field activity number 2005-004-FA
Version 1
Area of operation Moultonborough Bay, Lake Winnipesaukee, New Hampshire
Dates 2005
Chief scientist Jane Denny

Suggested citation: Denny, J. F, Danforth, W.W., Worley, C.R., and 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: U.S. Geological Survey data release, https://doi.org/10.5066/F71N7Z4H

Abstract: 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.

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2005-004-FA_DATA
The complete dataset associated with Field Activity 2005-004
2005-004-FA_DATA.zip
112.41 MB

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Metadata

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Bathymetry

winni_bathy
1-meter swath bathymetric grid collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (UTM Zone 19N, WGS 84, Esri Binary Grid file format)
image of bathymetric grid HTML
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winni_bathy.zip
2.79 MB
2005-004-FA_bathytrk
Survey tracklines of swath bathymetry collected by the USGS in Moultonbourough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile and CSV file formats)
image of survey tracklines HTML
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2005-004-FA_bathytrk.zip
93 KB
2005-004-FA_svp
Sound velocity profile locations collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile, CSV file and JPEG image formats)
sound velocity profiles HTML
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2005-004-FA_svp.zip
954 KB

Photographs

2005-004-FA_bottomphotos
Images of bottom photographs collected by the USGS in Moultonborough Bay, New Hampshire in 2005 (JPEG image file formats. EXIF headers have been modified to include navigation and other meta tags)
location of bottom photographs HTML
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2005-004-FA_bottomphotos.zip
75.53 MB
2005-004-FA_photolocs
Locations of bottom photographs collected by the USGS in Moultonborough Bay, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile)
location of bottom photographs HTML
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2005-004-FA_photolocs.zip
86 KB

Seismics

2005-004-FA_chimages
Images of chirp subbottom profiler data collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (JPEG image format. EXIF headers have been modified to include navigation and other meta tags)
chirp subbottom profiler data HTML
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2005-004-FA_chimages.zip
24.60 MB
2005-004-FA_chirpsht
Unique shot point navigation for Edgetech SB-424 chirp subbottom profiler data collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile and CSV file formats)
shot point navigation HTML
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2005-004-FA_chirpsht.zip
732 KB
2005-004-FA_chirptrk
Survey tracklines of chirp subbottom data collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile file format)
survey tracklines of chirp subbottom data HTML
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2005-004-FA_chirptrk.zip
217 KB

Sonar

2005-004-FA_sonartrk
Klein 3000 sidescan-sonar survey tracklines collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile and CSV file formats)
klein 3000 sidescan sonar survey lines HTML
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2005-004-FA_sonartrk.zip
82 KB
winni_sonar.tif
1-meter per pixel sidescan-sonar mosaic collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (UTM Zone 19N, WGS 84 GeoTIFF image format)
1 meter per pixel sidescan sonar mosaic HTML
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winni_sonar.zip
1.52 MB

Videos

2005-004-FA_videotrk
Trackline navigation for video data from 40 sample locations collected by the USGS in Moultonborough Bay, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile and CSV file formats)
trackline navigation for video data HTML
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2005-004-FA_videotrk.zip
89 KB

Samples

2005-004-FA-samples
Sediment samples and textural properties at 40 sample locations collected by the USGS in Moultonborough Bay, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile and CSV file formats)
sediment samples and textural properties at 40 sample locations HTML
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2005-004-FA_samples.zip
102 KB

Navigation

2005-004-FA_hypack
Text files of the Wide Area Augmentation System (WAAS) navigation collected by the USGS in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, HYPACK ASCII text file formats)
no preview available HTML
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2005-004-FA_hypack.zip
5.52 MB