Vegetation Analysis Report (2023 March 22

Survey Metadata
Data Collector:	Casey Thompson
Survey Time Stamp (UTC):	2022 April 12 - 14:50
Starting Location:	42.747897, -83.004287
Ending Location:	42.747931, -83.004321
Distance	0.305 miles

Survey Statistics
Average Water Temperature:	52.4 °F
Survey Area:	3.231 acres
Survey Volume:	19.789 acre ft
Percent of Waterbody Surveyed:	100.0%
Waterbody Area:	3.231 acres
Estimated Waterbody Volume	19.793 acre ft

Survey Settings
Includes Edited Data:	No
Track Buffer:	25 m
BV Grid Cell Size:	5 m
BV Minimum Detection - Percent:	5.0%
BV Minimum Detection - Depth:	2.400 ft
BV Maximum Detection - Depth:	20.000 ft
BV Sonar Channel:	Primary

Quality Control
Reviewer:	McCormack, Ian
Comments:	We have reviewed this trip. Please use the "ASK THE EXPERTS" button for this trip if you have any questions.

Survey Summary

Type?	PAC?	Avg BVp?	SD BVp?	Avg BVw?	SD BVw?	Depth Range	Depth Avg	No. Depth Records
Point	27.5%	19.3%	± 19.8%	5.3%	± 14.0%	3.03 - 9.45 ft	7.438 ft	650
Grid	34.6%	16.3%	± 10.6%	5.6%	± 9.9%	0.30 - 9.32 ft	6.125 ft	964

Bathymetric Contour Map	Vegetation Biovolume Heat Map
0' 9'

Biovolume Analysis by Quintiles

None

None

Type ?	0 - 20%	20 - 40%	40 - 60%	60 - 80%	80 - 100%
Point	92.3%	6.2%	0%	0%	1.5%
Grid	91.2%	7.7%	0.7%	0.4%	0%

Biovolume Analysis by Depth

Type?	Depth	Count	PAC?	Avg BVp?	SD BVp?	Avg BVw?	SD BVw?
Point	0 - 1 m	6	85.7%	12.3%	± 5.7%	10.5%	± 5.4%
	1 - 2 m	133	64.3%	21.4%	± 22.9%	13.8%	± 21.5%
	2 - 3 m	39	9.0%	13.4%	± 12.9%	1.2%	± 4.3%
	3 - 4 m	0	0%	0%	± 0%	0%	± 0%
	4 - 5 m	0	0%	0%	± 0%	0%	± 0%
	5 - 6 m	0	0%	0%	± 0%	0%	± 0%
	6 - 7 m	0	0%	0%	± 0%	0%	± 0%
	7 - 8 m	0	0%	0%	± 0%	0%	± 0%
	8 - 9 m	0	0%	0%	± 0%	0%	± 0%
	9 m +	0	0%	0%	± 0%	0%	± 0%
Grid	0 - 1 m	206	62.3%	21.1%	± 11.7%	13.2%	± 13.8%
	1 - 2 m	248	61.2%	14.9%	± 9.1%	9.1%	± 10.2%
	2 - 3 m	510	10.5%	8.3%	± 3.2%	0.9%	± 2.8%
	3 - 4 m	0	0%	0%	± 0%	0%	± 0%
	4 - 5 m	0	0%	0%	± 0%	0%	± 0%
	5 - 6 m	0	0%	0%	± 0%	0%	± 0%
	6 - 7 m	0	0%	0%	± 0%	0%	± 0%
	7 - 8 m	0	0%	0%	± 0%	0%	± 0%
	8 - 9 m	0	0%	0%	± 0%	0%	± 0%
	9 m +	0	0%	0%	± 0%	0%	± 0%

Glossary

AOI: Area of Interest: Defines the individual transects or contiguous data samples as depicted by the color coding of each trip line. Seperate areas of interest can be generated through merging of multiple trips, appending data to a single sonar log or lapses in time (greater than five minutes) within a sonar log.
BVp: Biovolume (Plant): Refers to the percentage of the water column taken up by vegetation when vegetation exists. Areas that do not have any vegetation are not taken into consideration for this calculation.
BVw: Biovolume (All water): Refers to the average percentage of the water column taken up by vegetation regardless of whether vegetation exists. In areas where no vegetation exists, a zero value is entered into the calculation, thus reducing the overall biovolume of the entire area covered by the survey.
PAC: Percent Area Covered: Refers to the overall surface area that has vegetation growing.
Grid: Geostatistical Interpolated Grid: Interpolated and evenly spaced values representing kriged (smoothed) output of aggregated data points. The gridded data is most accurate summary of individual survey areas.
Point: Individual Coordinate Point: A single point represents a summary of sonar pings and the derived bottom and canopy depths. Individual point data create an irregularily spaced dataset that may have overlaps and/or gaps in the data resulting in a increased potential for error.
Type: Individual Coordinate Point: A single point represents a summary of sonar pings and the derived bottom and canopy depths. Individual point data create an irregularily spaced dataset that may have overlaps and/or gaps in the data resulting in a increased potential for error.

Geostatistical Interpolated Grid: Interpolated and evenly spaced values representing kriged (smoothed) output of aggregated data points. The gridded data is most accurate summary of individual survey areas.
Estimated Waterbody Volume: Estimated Waterbody Volume: The total lake volume estimation is based on this dataset only and will depend on total coverage and coverage depths of collected data.

Offsets

Trip Name	Trip Date (UTC)	Manual Offset (ft)	Tide Station Name	Avg Tide (ft)	Min Tide (ft)	Max Tide (ft)	Start Tide (ft)	End Tide (ft)
AC3.sl2	2022 April 12 - 14:50	0.000	NA	NA	NA	NA	NA	NA

AC 3, Macomb Michigan

Survey Summary

Manual Vegetation

Manual Depth

Biovolume Analysis by Quintiles

Biovolume Analysis by Depth

Glossary

Offsets