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Industry discovery for ocean mapping workflow associated challenges

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Abstract

Ocean mapping professionals are facing challenges in various areas of the hydrographic workflow. Understanding them can be difficult, as they are many and varied, but essential toward solving them. Some understanding can be reached with studying existing specifications and reports, however a more in-depth knowledge may be acquired directly from professionals in the field. With a developing industry discovery project, we aim to identify the day-today challenges in data collection, data processing, chart compilation, research and development, production management, and use of products by end users. These insights, besides building awareness, can assist in designing new techniques, and in evaluating research directions. This work presents the first phase of the project that focused on data collection and processing. It summarizes responses in regard to data, requirements for the deliverables, verification methods, and deficiencies of the process. The majority of participants were professional hydrographers and cartographers from various hydrographic offices, as well as the academia and private sector. Their responses have, unsurprisingly, confirmed the utmost importance of bathymetry, standards, and safety constraint in the domain, pointed out the mostly manual inspection of deliverables, and identified human related factors and the absence of automation, followed by problems with the data, as the most significant deficiencies of the process (Figure). We discuss that some of these deficiencies may be addressed with straightforward actions, e.g., training, better documentation, studies to increase awareness, while others are more challenging, e.g., automation, need for unpopular decisions from senior professionals, or probably impossible to overcome, e.g., human subjectivity.
Industry discovery for ocean mapping workflow associated challenges
Christos Kastrisios1, Brian Calder1
1 Center for Coastal & Ocean Mapping/Joint Hydrographic Center, University of New Hampshire, Durham, USA
Christos.Kastrisios@unh.edu
Ocean mapping professionals are facing challenges in various areas of the hydrographic workflow.
Understanding them can be difficult, as they are many and varied, but essential toward solving them. Some
understanding can be reached with studying existing specifications and reports, however a more in-depth
knowledge may be acquired directly from professionals in the field.
With a developing industry discovery project, we aim to identify the day-to-day challenges in data
collection, data processing, chart compilation, research and development, production management, and
use of products by end users. These insights, besides building awareness, can assist in designing new
techniques, and in evaluating research directions.
This work presents the first phase of the project that focused on data collection and processing. It
summarizes responses in regard to data, requirements for the deliverables, verification methods, and
deficiencies of the process. The majority of participants were professional hydrographers and
cartographers from various hydrographic offices, as well as the academia and private sector. Their
responses have, unsurprisingly, confirmed the utmost importance of bathymetry, standards, and safety
constraint in the domain, pointed out the mostly manual inspection of deliverables, and identified human
related factors and the absence of automation, followed by problems with the data, as the most significant
deficiencies of the process (Figure). We discuss that some of these deficiencies may be addressed with
straightforward actions, e.g., training, better documentation, studies to increase awareness, while others
are more challenging, e.g., automation, need for unpopular decisions from senior professionals, or
probably impossible to overcome, e.g., human subjectivity.
Keywords: cartographic knowledge acquisition, hydrographic workflow, nautical cartography, ocean
mapping.
Figure. Classification of the identified deficiencies of data processing and verification by the survey
participants.
... Reluctance to change has been identified as one of the main human related deficiencies by professionals in the hydrography/ nautical cartography domain (see Kastrisios & Calder, 2021). Nevertheless, the results of a poll we conducted among professional hydrographers and nautical cartographers suggest that QoBD is well received by the community (Figure 1). ...
Conference Paper
Full-text available
Nautical charts are compiled with bathymetric data that differ in the year and method collected over areas varying from stable to mobile seafloor. Data quality on Electronic Navigational Charts (ENCs) is mainly encoded as an overlay of polygonal regions, each assigned a Category Zone of Confidence (CATZOC) based on the positional and attribute accuracy of depth measurements and the completeness of the collected data. The relevant committees of the International Hydrographic Organization (IHO) have decided on replacing the current CATZOC star symbology that has been proven problematic. One potential solution for the data quality sectors’ visualization is with the use of see-through textures consisting of countable elements. This work presents two proposed coding schemes and the results of an online user survey and an in-lab experiment for their evaluation compared to three alternatives. Also, discusses how the results compare to previous works on uncertainty visualization and how the concept of countable textures could be extended for other uses.
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