Eduard Meier-Lee’s Post

A highly recommended method for survey of rivers which are susceptible to flooding and in high risk position.

🌟Underwater LiDAR:🌟 💡Underwater LiDAR is marine research and exploration by providing high-resolution 3D maps of underwater environments with high detail and accuracy. 🌟 Key Benefits of Underwater LiDAR: 💡1-Precision Mapping: Captures detailed 3D models of underwater landscapes and structures with high-level accuracy. 💡2-Enhanced Exploration: Enables scientists and researchers to study monitor changes over time, and discover hidden treasures with unparalleled clarity. 💡3-Efficient Surveys: Streamlines underwater surveys and inspections, reducing time and costs associated with traditional methods. 💡4-Archaeological Discoveries: Unveils submerged archaeological sites and artifacts, shedding light on our maritime history and cultural heritage. Video credit: Geospatial World #UnderwaterLiDAR #MarineExploration #OceanResearch #Innovation #Technology #MarineConservation #LiDAR #UnderwaterMapping

Based on a permanent TLS station (measuring forest every hour, data resemble drone laser scanning (in geometry) since TLS is placed 30 m above ground level): - Hyper-temporal LiDAR time series captures phenological characteristics of tree species. - Tree-wise phenological dynamics are species-specific and support species classification. - Late autumn and optionally late spring LiDAR data support best species classification (single wavelength system). https://lnkd.in/dDGw9F_C

Geologic maps form the basis for a multitude of natural resource-related decisions. Geologic mapping is a rapidly evolving discipline that employs a range of modern techniques including satellite and drone imagery, multispectral analysis, 3D visualization, custom lidar (high-resolution topography), complex relational databases, and the new and evolving field of machine learning, a subfield of artificial intelligence (AI). Learn how our Geologic Mapping Program is employing these new tools in the latest Mapping News–https://ow.ly/Wgx850Qt8au #utahgeology #geologicmaps Photo: Drone photograph of unconsolidated deposits and a rock glacier in upper Gad Valley scanned with new drone-based lidar. The view is to the northeast.

This technology is very interesting since LiDAR problem is penetrating water bodies. Although it has the ability to penetrate water, its range is very shallow. I am very curious and interested on how the mechanics of the LiDAR and how accurate the depth that it can produce.

🌟Underwater LiDAR:🌟 💡Underwater LiDAR is marine research and exploration by providing high-resolution 3D maps of underwater environments with high detail and accuracy. 🌟 Key Benefits of Underwater LiDAR: 💡1-Precision Mapping: Captures detailed 3D models of underwater landscapes and structures with high-level accuracy. 💡2-Enhanced Exploration: Enables scientists and researchers to study monitor changes over time, and discover hidden treasures with unparalleled clarity. 💡3-Efficient Surveys: Streamlines underwater surveys and inspections, reducing time and costs associated with traditional methods. 💡4-Archaeological Discoveries: Unveils submerged archaeological sites and artifacts, shedding light on our maritime history and cultural heritage.  Video credit: Geospatial World #UnderwaterLiDAR #MarineExploration #OceanResearch #Innovation #Technology #MarineConservation #LiDAR #UnderwaterMapping 

LIDAR for the win once again. The story of the discovery of these cities in the Amazon broke a while ago but this article has the best LIDAR topology images I have seen so far. The sites seem enormous, I hope they can get archeological boots on the ground soon to learn more about this civilization. #lidar #archeology

Abstract:"Forest ecosystems have been identified as major carbon stocks in terrestrial ecosystems; therefore, their monitoring is critical. Forests cover large areas, making it difficult to monitor and maintain up-to-date information. Advances in remote sensing technologies provide opportunities for detailed small-scale monitoring to global monitoring of forest resources. Airborne laser scanning (ALS) data can provide precise forest structure measurements, but mainly for small-scale forest monitoring due to its expensive cost and limited spatial and temporal coverage. Spaceborne lidar (light detection and ranging) can cover extensive spatial scales, but its suitability as a replacement for ALS measurements remains uncertain. There are still relatively few studies on the performance of spaceborne lidar to estimate forest attributes with sufficient accuracy and precision. Therefore, this study aimed at assessing the performance of spaceborne lidar ICESat-2 canopy height metrics and understanding their uncertainties and utilities by evaluating their agreements with ALS-derived canopy height metrics in Mississippi, United States. We assessed their agreements for different forest types, physiographic regions, a range of canopy cover, and diverse disturbance histories using equivalence tests. Results suggest that ICESat-2 canopy height metrics collected using strong beam mode at night have higher agreement with ALS-derived ones. ICESat-2 showed great potential for estimating canopy heights in evergreen forests with high canopy cover. This study contributes to the scientific community’s understanding of the capabilities and limitations of ICESat-2 to measure canopy heights at regional to global scales." https://lnkd.in/gYEYGubF Evaluating the Uncertainties in Forest Canopy Height Measurements Using ICESat-2 Data

Data Dive: A view looking north east at the entrance of Arch Canyon. The image was created from the lidar bare earth model colored by elevation. Data were collected to aid USFS Region 4 in assessing the topographic and geophysical properties of the study area to identify landscape scale information on cultural resource sites and to provide information for assessing and managing vegetation, fire, and recreation activities. #ArchCanyon #Utah #GIS #Lidar #Topographic #USFS #BeyondEngineering #NV5

A point cloud captured with a terrestrial laser scanner (TLS) reveals the inside of a cavern at Golden Gate Highlands National Park, South Africa. Within the cavern lies a geomorphological phenomenon called Tafoni, speculated to have formed due to preferential weathering. However, there isn't an accepted theory behind the formation of this cavernous weathering. This was a component of my Honours project, where I evaluated the feasibility of using LiDAR to scan macro and micro geomorphological features. I generated a Digital Elevation Model (DEM) of this phenomenon and calculated the volume of the total weathered material. This might provide insight into the reasons behind the formation of this feature and allows for the rapid and accurate measurement of complex geomorphological features. #LiDAR #Geomorphology #Geomorphometry #MorphometricAnalysis #3Dscan #Surveying #TLS