Lorena Daltro’s Post

This report provides validation and intercomparison results for the Planet Forest Carbon Diligence products. It is intended for geospatial data users interested in aboveground carbon density, canopy cover, and canopy height datasets. The Forest Carbon Diligence products quantify — globally and annually — the density of carbon stored in trees, the area occupied by trees, and stand-level mean canopy height. These estimates are produced from machine learning models trained on historical satellite observations, airborne LiDAR data, and spaceborne LiDAR data. Diligence aboveground carbon estimates show strong agreement with other high quality global datasets, such as NASA-GEDI data, ESA-CCI Biomass data, and UN-FAO country-level statistics. Click in to learn more about the detailed assessment methods and results. #ForestCarbonDiligence #CarbonDensity #CanopyCover #CanopyHeight #SatelliteData #LiDARData #MachineLearning #GeoSpatialData #DataValidation #DataIntercomparison

It took a long time, but my third scientific paper (and last Ph.D. chapter) is finally published! Some key points from the paper: 1. Very large snow grains and densities are needed to explain centimeter-level differences between ICESat-2 and airborne lidar. 2. Biases from snow grain size and other factors may be influenced by different height measurement methods between ICESat-2 and airborne lidar. 3. Snow grain size retrievals strongly differ between airborne lidar and AVIRIS-NG over regions with coarse-grained snow. Link to full article: https://lnkd.in/eu9FVBSx

The latest addition to the GEE Data Catalog: #DeltaDTM Global coastal digital terrain model It is a global coastal Digital Terrain Model (DTM) with a horizontal spatial resolution of 1 arcsecond (∼30m) and an overall vertical mean absolute error (MAE) of 0.45m. It is generated from the accuracy improvement of existing global elevation datasets by correcting Copernicus DEM with spaceborne lidar data from the ICESat-2 and GEDI missions.  Access Data: https://lnkd.in/gkXKb5u4 Reference paper: https://lnkd.in/gh2WFz-Y

How spaceborne satellites can help with forest monitoring

Blue carbon ecosystems, particularly seagrass meadows, support biodiversity, protect shorelines, and sequester and store carbon. Locating seagrass habitats and measuring their spatial extent is key — but has been difficult with existing methods. We’ve developed and validated an aerial LiDAR approach for mapping tropical seagrass meadows by integrating full-waveform bathymetric LiDAR with multi-spectral imaging. Our paper on this innovative and scalable method is now officially published: https://hxgn.biz/3XKkr8u

There's strength in numbers... Especially with air quality monitoring. The more air quality networks, the more accurate the data, and the more effective the solution. That's why researchers and air quality organizations in Canada collaborated with NASA to develop the Canadian Micro-Pulse Lidar Network (MPLCAN). Western University With it, they can study how air pollution from wildfires: ➡️ Affects the atmosphere ➡️ Impacts the formation of fog and clouds ➡️ Travels across long distances Dive into our latest blog to see how MPLCAN improves air quality research. https://lnkd.in/gMJGXaHp #AirQuality #AirQualityMonitor #AirPollution #AirQualityProject #AirQualityIndex #AQI #PM25 #Canada

"Preparations for the launch of the new Earth observation satellite EarthCARE (Earth Cloud Aerosol and Radiation Explorer) at the end of May are in full swing... Three so-called processors, which the Leibniz Institute for Tropospheric Research (TROPOS) has developed together with partners, are making an important contribution to the mission... The new software makes it possible to derive cloud properties from the passive spectrometer (MSI), aerosol and cloud layers from the active, high-spectral-resolution lidar (ATLID) as well as synergetic cloud and aerosol products from both instruments. An aerosol classification model (HETEAC) was developed as the basis for aerosol typing to ensure that these calculations work across the different devices." #satellitedata #earthobservation #atmosphere #aerosols #clouds

The deadline (July 31) for AGU24 Abstract submission deadline is fast approaching. Below is a re-post with minor update: together with Prof. Lori Magruder (UT Austin), we are hosting the following session at the incoming AGU Annual Meeting : Session ID: 229585; Session Title: G020: Terrain Modeling from Space; Section: Geodesy; Session description: Satellite-based images, lidar/laser altimeters, synthetic aperture radar have greatly enhanced the capability and quality of earth observation. Space images at sub meter resolution can be acquired from multiple views in a short period of time. ICESat-2 and GEDI are able to collect direct 3-D measurements at unprecedented accuracy and density. Their combination and their joint use with other existing space based data, such as SRTM DEM, ASTER GDEM, and Copernicus DEM have also attracted worldwide interests from multiple science disciplines. This session will present most recent progress in handling such space-based data to generate large-scale or global terrain products for scientific applications. Planned space missions in the near future will also be discussed. You are welcome to submit an Abstract (max 2000 characters) through the system at https://lnkd.in/gf8B4jAd by Wednesday, 31 July 2024 at 23:59 EDT. Abstracts should focus on scientific results, enabling Earth and space science or its application, and/or the contribution of Earth and space science to society. The AGU24 Meeting will be held at Washington, D.C., December 9-13, 2024. The figure below is an artwork.

Altechna to use Alexandrite laser crystals in satellite-based lidar devices for atmospheric research Altechna will use the high-power #Alexandrite #crystals and coatings developed in the #Galactic project to collect climate change-related observations on the #atmosphere and vegetation. The goal is to employ such #laser crystals in systems used in #satellite-based #lidar devices for shoreline mapping, storm surge modeling and seafloor measuring. During the Galactic project, three European companies – Altechna, Optomaterials and Laser Zentrum Hannover e.V. (LZH) – developed a European supply chain of Alexandrite laser crystals for studying changes in the atmosphere and the planet’s surface. Read more here: https://lnkd.in/e94Wnfp8 #Meteorology #Climate #ClimateChange #Science #Weather #Data #Forecasts #Environment #Technology #MetTechExpo #MetTechExpoNA 

🌌 ClearSpace, in collaboration with CSEM, EPFL and Klepsydra Technologies is revolutionizing in-orbit servicing with the introduction of smart flash lidar technology! This cutting-edge system autonomously navigates and removes hazardous space debris, ensuring a safer and more sustainable space environment for everyone. 🚀 With over 130 million pieces of debris orbiting Earth, this innovation is a game-changer for protecting our vital space infrastructure and future missions. By providing real-time, high-speed data, our technology enables the safe approach and capture of debris, mitigating the risks posed by space junk. Kudos to our incredible Swiss partners, supported by Innosuisse– the Swiss Innovation Agency, for spearheading this groundbreaking advancement in space technology. Together, we are not only cleaning up space but also laying the foundation for a sustainable future for generations of space explorers. 👉 Read the original press release : https://hubs.la/Q02zqR7n0 Join us in supporting a cleaner, safer space environment by staying updated on the latest developments from ClearSpace with our Swiss Partners.. #SpaceInnovation #Sustainability #ClearSpace #SpaceDebris #TechForGood