SonTek HydroSurveyor M9 now powered by HYPACK! CASE STUDY: USGS HYDROSURVEYOR SURVEY OF FENA VALLEY RESERVOIR, GUAM

Transcription

1 SonTek HydroSurveyor M9 now powered by HYPACK! CASE STUDY: USGS HYDROSURVEYOR SURVEY OF FENA VALLEY RESERVOIR, GUAM

2 Presenters Harold Orlinsky General Manager HYPACK Isaac Jones Product manager, SonTek

3 Overview Background HydroSurveyor M9 Now fully integrated with HYPACK Max HYPACK Max software Case Study USGS - Fena Valley Reservoir Survey Survey to final product (HydroSurveyor software) HYPACK *.YDFF conversion HYPACK Survey to final product 3

4 Background: SonTek HydroSurveyor M9 9-beam ADCP 3 frequencies Collects 5-beam depth with 50deg swath in depths from m, up to 80m depth with vertical beam Simultaneously records depth and measures water velocity Sound speed correction using built in temperature sensor or integrated CastAway CTD 500 khz 3000 khz 1000 khz 50

5 Background: HYPACK Max software Fully integrated with SonTek HydroSurveyor M9 and CastAway CTD Powerful software that does it all Survey planning, data collection, post processing to final product Create contours, cross-sections, calculate volume, volume change and much more! Can combine bathymetry, topography and LiDAR Flexible exports (i.e., CAD, xyz, Google Earth *.kml, *.kmz) Hundreds of sensor interfaces and generic drivers HYPACK shell Survey view with 5-beam soundings

6 CastAway-CTD Integration 7:00 AM 9:00 AM 11:00 AM Sound Speed Profiles Time: 4 hours Space: 2 miles

7 USGS Survey of the Fena Valley Reservoir survey - Guam Primary source of fresh water for the US Naval base Guam and nearby residence Surveyed using two methods SonTek HydroSurveyor M9 and CastAway CTD Multi-frequencey, single beam subbottom profiler Objectives To determine: Current storage capacity Loss of storage capacity since 1951 Rate of storage capacity lost due to sedimentation Marineau

8 Results: Fena Valley Reservoir Survey Total current (2014) storage capacity 6,915 acre-feet Survey prior to construction in 1951, storage capacity 8,365 acre-feet Decrease in storage capacity of 1,449 acre-feet (17%) and a decrease of live storage of 372 acre feet (6%) Average storage decrease of 23.0 acre-feet/year since construction Sedimentation rates cannot be estimated because of the uncertainty of previous surveys 48km of survey lines 2000m long reservoir 500m wide at its widest 8 Marineau 2014

9 Survey to final product (2014) HydroSurveyor SW: Navigate survey and collect data HydroSurveyor SW: Correct soundings with CastAway CTD data HydroSurveyor SW: Export sounding data to Excel ArcGIS: Remove bad soundings ArcGIS: Merge bed elevations and topographic survey Excel: Apply gauge height correction to soundings convert from depth to bed elevation ArcGIS: Import sounding data and interpolate using nearest-neighbor MATLAB: tabulate data and calculate surface area and cumulative storage capacity ArcGIS: Create contours for Map 9

10 Data flow Collection to final product HydroSurveyor M9 run by HYPACK SURVEY Single Beam Editor TIN Model Volumes HS data files *.YDFF HYPACK File converter (YDFF-RAW) In 2017, we will be releasing a 64-bit Single Beam editor (input: XYZ,EDT format) HYPLOT Contours 2D & 3D models CS&V KMZ and other 10

11 Data collection HYPACK Survey Setting up the hardware devices: 1. GPS Can use internal (SonTek PCM GPS) or external position device. For internal, ensure the connect is set for UDP output from the MP driver 2. Sontek M9 - needs to be installed on Mobile, for bottom track positioning 11

12 Data collection HYPACK Survey Setting up the Geodesy Choose the selected Grid (and zone) and elipsoid Working outside of a WGS84 elipsoid, you must include a data transformation 12

13 HYPACK Survey A typical layout for the Survey screen. Note the device driver has the three tabs, which can show: Depths from each transducer, velocity and bottom track 13

14 HYPACK Survey the M9 driver displays Depth Display Velocity Bottom Track 14

15 Data processing There are two work flows for getting the data processed: HYPACK Collected data (RAW) > Single Beam Editor (EDT and XYZ) > Final products (TIN model and Volumes) Previously collected data files (YDFF) > Data converter YDFF-RAW > Single Beam Editor > Final Products

16 Using YDFF data files collected from the HydroSurveyor software You will need to convert the YDFF to a HYPACK RAW file. The converter is included in the HSXConverter program. Launch from the Sidescan menu and select the file type YDFF 16

17 What exactly is in a RAW file All data is logged in seconds past midnight Each sensor has its own field (POS = position, HCP = motion, ECM = depth, GYR = gyro). Data from the M9 will hold all 9 depths, but on each ping, only 5 will be valid ECM The center beam is in spot #5. In this example, the depth is The others will be logged as slant range, and corrected with the take off angle. 17 POS RAW HCP GYR ECM POS RAW HCP GYR

18 Using Single Beam Editor Each RAW file contains the information from the GPS, motion sensor, depth and heading sensors. The associated YDFF holds the velocity data (a binary file) 18 Data selection option while running the Single Beam editor

19 Single Beam Editor Session 19

20 Cleaning out the data flyers Data flyers that need to be removed After editing 20

21 Data views in Single Beam Editor for QC the data Motion and heading data Trackline data Spreadsheet for exporting data 21

22 Data through TIN model TIN model (Triangular Irregular Network) will use the output from Single beam editor - XYZ or EDT files, to create contours, gridded soundings, 2D and 3D models, and volumes calculations 22

23 Data views in 2D The 2D display creates a filled surface of the data, and can output profile sections 23

24 Data views in 3D 3D model can be shown with vertical exaggeration, light illumination, and export as a GeoTiff image. 24

25 Computing volumes Reservoir Volumes or TIN to TIN (surface) volumes can be calculated 25 Level Volume Above Area Above Volume Below Area Below

26 Creating Contours and gridded soundings Countour (DXF) files can be created as a single level or filled area. Step size can be user defined. In this example, a 2 meter filled contour is created. 26

27 Creating gridded soundings As a plot overlay, gridded soundings can be exported from TIN model. In this example, soundings created ever 25 meters 27

28 Putting all the output together 28

29 Data exported to KMZ file (to Google Earth) Data Processes in TIN model, exported to a KMZ file from HYPACK, shown in Google Earth 29

30 Updated Single Beam Editor - (coming soon) All data can be viewed, color coded by line number, display of sounding data from all transducers. Will be easier to view all data at once Beta release October 1 30

31 New SB editor profile view 31

32 References Marineau, M.D., and Wright, S.A, 2015, Storage capacity of the Fena Valley Reservoir, Guam, Mariana Islands, 2014: U.S. Geological Survey Scientific Investigations Report , 31 p., 32

33 CHC 2016 Conference Comparing Survey Results Between a Multibeam Sonar and a Multi-Channel Depth-Capable ADCP PAT SANDERS, TECHNICAL DIRECTOR, HYPACK YSI HAROLD ORLINSKY, GENERAL MANAGER, HYPACK YSI

34 Coverage of the system With the beams at 25 degrees on each side, we can achieve a coverage of almost 1 times water depth Coverage = 2 x tan(25) x water depth In 10 meters of water, the system will give the user an effective swath of 9.6 meters. Compared to a traditional single beam system using a 3 degree transducer, and giving a footprint size of 0.5m, there is a tremendous advantage using this tool 34

35 Our Test Area: Providence, RI Surveyed on 1/22/2016 by USACE with R2Sonic 2024 multibeam and Applanix POS-MV Surveyed on 1/29/2016 by USACE with a SONTEK M9 ADCP and Applanix POS- MV 35

36 Survey Hardware: Multibeam Configuration M9 Configuration R2Sonic 2024 Applanix POS-MV SONTEK M9 Applanix POS-MV Network Switch RS-232 Network Switch HYPACK/HYSWEEP SURVEY HYPACK SURVEY Bluetooth SONTEK Castaway Bluetooth SONTEK Castaway 36

37 PROCESSING R2Sonic Multibeam Data LNW File HSX Files MBMAX XYZ File TIN MODEL DXF Contours Sections CSV SONTEK M9 Data (SBMAX) LNW File RAW Files SBMAX Edited Files TIN MODEL DXF Contours Sections 37

38 M9 Data in SBMAX 38

39 Contour Comparisons DREDGE AREAS Multibeam Contours in Blue M9 - SBMAX Contours in BLACK Contoured every 5 in HYPACK s TIN MODEL Good agreement on slopes Noise in M9 data set generates multiple contour artifacts (unsmoothed data) 39

40 Comparison of Sections Through TIN MODELS Multibeam M9 from MBMAX M9 from SBMAX 40

41 Why it s good to have complete coverage Multibeam M9 from MBMAX M9 from SBMAX 41

42 Statistical Comparisons and observations XYZ MB SBMAX M9 TIN MODEL XYZ Differences Multibeam data verse HydroSurveyor M9: Mean difference: 11 cm Standard Deviation: 26cm The depths from the SONTEK M9 Hydrosurveyor can meet IHO Order 1A/B survey standards when combined with a quality positioning system. It s not going to replace your multibeam system, but for hydrographers interested in obtaining simultaneous current and depth measurements, it can reduce redundant systems 42

43 Thank you Questions? 43

44 References Marineau, M.D., and Wright, S.A, 2015, Storage capacity of the Fena Valley Reservoir, Guam, Mariana Islands, 2014: U.S. Geological Survey Scientific Investigations Report , 31 p., 44