Gathering and Prioritizing HO-specific Issues Relating to CSB Data Team
This document outlines the objectives and issues faced by the CSBWG-14 HO Subgroup in handling CSB data for SOLAS navigational products. The team aims to improve data quality, volumes, and data processing while engaging with industry to ensure necessary tools exist. They also discuss the need for automated data accessibility, participation in DCDB development, and establishing suitable standards for CSB data. Additionally, the document covers data flow, raw file processing, NAVWARN assessment, and VBI comparison in Canadian waters.
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CSBWG-14 HO SubGroup Gather and prioritize HO-specific issues relating to CSB data Team: Pete Wills (CA), Hans Olias (Swe), Giuseppe Masetti (Dan), Andy Talbot (UK), Anthony Klemm (US-NOAA), Akim Mahmood (US-NGA) August 16 2023
Group Objectives Group Objectives a. Produce guidance for use of CSB data for SOLAS navigational products. I. Data quality II. Volumes III. Providing working examples. IV. Data processing Engage with industry (software developers) to ensure the required tools exist to be able to efficiently use CSB data from DCDB for SOLAS navigational products. Engage with other IHO working groups to ensure suitable standards exist for describing CSB data and displaying CSB data on ECDIS. Trusted CSB? Semantics causing confusion Share knowledge and best practice on CSB between MS. b. c. d. e. Group Issues a. other objectives dependent on automating data accessibility. b. Need easy way to identify what needs reviewing in area of interest c. Need to participate in DCDB development to ensure HO s are getting what they need and it is aligned with B-12. d. Is it easier to have all data go through the HO?
Data flow CSB Data on Official Products Data from Hydrographic Office or Contractors * HO Db * 3 r Controlled data d P a r t y D a t a yes QA Uncontrolled data no * 3rdParty National Database CSB Data DCDB HO as a Trusted Node * NAVWARN Assessment
Raw file Date, Time, Lat, Lng, Speed, Depth Regional BDB Data Processing and QA Workflow Valid MBES Gridded Raw file Calibration/QA Remaining lever arm Shift / CatZOC Voronoi ZDF file Coded by Michel Leger, CHS ATL 3rdParty_ National_ BDB 3rdPartyBDB loading JSON file
NAVWARN Assessment HydrOffice CATools leveraged for Chart Comparison algorithm (https://www.hydroffice.org/catools/main) Python Script Developed to Compare soundings from surface in S57 file with Current ENC s using CATools chart comparison methods coupled with CHS NAVWARN criteria. Query overlapping charts with soundings via S-57 Catcov1 WFS layer, to build directory paths Output selected shoal soundings (purple) that are deemed to be potential NAVWARNS.
VBI Compare in Canadian Waters Leverage VBI Compare s DCDB search algorithm to Retrieve DCDB Datasets within Canadian Waters Future Developments with leveraging and contributing to VBI for CHS Investigate and develop a Script to monitor when New data is uploaded to DCDB ENC Extents Add functionality to connect to NONNA and CHS BDB holdings to leverage and analyze datasets through the Reputation Calculation. Add linkage between VBI and CHS s CSB Automated Processing Workflow
