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Africa Surveyors May-June issue 2023 digital

Africa Surveyors is Africa’s premier source of Surveying, Mapping and Geospatial news and an envoy of surveying products/service for the Construction, Maritime, Onshore & Offshore energy and exploration, Engineering, Oil and Gas, Agricultural and Mining sectors on new solution based trends and technology for the African market.

Africa Surveyors is Africa’s premier source of Surveying, Mapping and Geospatial news and an envoy of surveying products/service for the Construction, Maritime, Onshore & Offshore energy and exploration, Engineering, Oil and Gas, Agricultural and Mining sectors on new solution based trends and technology for the African market.

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INTERNATIONAL<br />

MBARI, 3D Aim To Create New LIDAR Seafloor Mapping Technology<br />

Imaging the structure of the deep seafloor<br />

is critical to understanding the biology and<br />

ecology of the largest living space on our<br />

planet. But to date, only about 20 percent<br />

of the ocean floor has been mapped at a<br />

resolution useful for scientific study.<br />

For the past 10 years, MBARI has worked<br />

with 3D at Depth to develop innovative tools<br />

to map the seafloor using lidar technology.<br />

Now, this partnership aims to create the next<br />

generation of subsea lidar technology that<br />

can generate detailed high-resolution maps<br />

of underwater features.<br />

“To meet our goal of surveying the complex<br />

and rugged terrain of the deep seafloor at<br />

one-centimeter resolution, we’re working<br />

closely with 3D at Depth to develop enhanced<br />

lidar technology that will be smaller in<br />

size and weight and require less power,<br />

making it ideal for deployment on MBARI’s<br />

robotic submersibles and eventually, our<br />

autonomous robots too,” said Dave Caress, a<br />

MBARI uses lidar technology from 3D at Depth to visualize the deep seafloor at high resolution.<br />

This year, MBARI and 3D at Depth will build and test a more portable lidar system designed for<br />

seafloor mapping. Image: Todd Walsh © 2018 MBARI<br />

principal engineer at MBARI and the principal<br />

investigator of MBARI’s Seafloor Mapping Lab.<br />

“We’re excited that a research organization<br />

such as MBARI continues to use and invest in<br />

our technology to meet one of their strategic<br />

goals. These projects are truly a win-win<br />

for both organizations as it provides MBARI<br />

with a tool to meet their scientific goals and<br />

helps us improve our subsea lidar systems for<br />

diverse robotic platforms,” said 3D at Depth<br />

CEO Carl Embry.<br />

IOGP Releases Land Survey Data Model<br />

The International Association of Oil and<br />

Gas Producers has released its Land<br />

Survey Data Model (LSDM), continuing<br />

the practice of its Geomatics Committee of<br />

maintaining an "out-of-the-box" data model<br />

template to manage survey data within a<br />

geodatabase.<br />

The LSDM is an industry standard template<br />

for operators to maintain land survey data,<br />

mainly acquired for the oil and gas industry.<br />

The model enables the storage of key<br />

geospatial and nongeospatial descriptive and<br />

feature-specific elements of the following<br />

land-based survey activities:<br />

• Design, engineering, and construction<br />

surveys of infrastructure and facilities<br />

including proposed routes, as-found,<br />

as-left, as-installed, and as-built<br />

positions; depth of burial; general/<br />

detail layout surveys—for company or<br />

third-party facilities that may overlap<br />

or affect exploration and production<br />

infrastructure (e.g., those owned or<br />

operated by utility companies)<br />

• Land and topographic surveys, including<br />

elevation (e.g., contours, spot heights,<br />

relief shading, terrain modeling), natural<br />

and man-made features, explosive<br />

remnants of war, archaeological sites,<br />

and underground services surveys<br />

• Geodetic and survey control network<br />

surveys, including coverage, line of sight,<br />

and monumentation<br />

• Land survey measurements, survey<br />

line plans, and similar documentation<br />

for unmanned aerial vehicle (UAV)/<br />

light detection and ranging (LiDAR)<br />

operations or similar (planned and asexecuted)<br />

• Vegetation and land use surveys<br />

• Imagery from satellite, UAV, and crewed<br />

survey flights (e.g., satellite imagery,<br />

LiDAR, aerial photography)<br />

• Right of Way (ROW) surveys and<br />

surveillance (ROW anomalies and<br />

The model is an industry<br />

standard template for<br />

operators to maintain<br />

land survey data, mainly<br />

acquired for the oil and<br />

gas industry. | Image<br />

Source: IOGP<br />

observations) such as pipeline route<br />

surveys, pipeline and facility UAV<br />

inspection, and access road surveys<br />

• Administrative boundaries and cultural<br />

information (e.g., roads, railways, rivers,<br />

habitation)<br />

• Geophysical/seismic, exploration and<br />

reconnaissance, geohazard, shallow and<br />

intermediate geology surveys<br />

• Geotechnical soil investigations<br />

• Environmental baseline and monitoring<br />

surveys<br />

• Infrastructure condition and subsidence<br />

monitoring surveys<br />

A detailed description of the data model may<br />

be found in the IOGP Report 640 – LSDM<br />

Guideline for Delivery and Use report, which<br />

is included in the package.<br />

Download the LSDM package here.<br />

www.africasurveyorsonline.com<br />

<strong>May</strong>-<strong>June</strong> <strong>issue</strong> l <strong>2023</strong> 7

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