Forest and Fields, July 18, 2016

Tagged by: PlanetScope

Fusing PlanetScope & Sentinel-2 for Daily, High-resolution Leaf Area

Paper

Improving crop yields, vigor and health, can be facilitated by better monitoring of the cross-sectional area of vegetation—i.e., Leaf Area Index or LAI. However, measuring LAI on the ground is time consuming and expensive. Sentinel-2, operated by the European Space Agency, publishes a global LAI product; but at 10m resolution and a […]

PlanetScope + Deep Learning Improves Understanding of Glacial Lake Risk

Paper

Glacial lakes in mountainous regions are prone to outburst floods that can devastate entire communities. With climate change, glacial ice is thinning and retreating in the Hindu Kush, Karakoram and Himalaya region, posing an increasing threat to human life and requiring improved monitoring. Nida Qayyum, in the Department of Space Science at […]

Commercial and Government Researchers Move Toward Collaborative Satellite Calibration

Paper

On a rapidly changing Earth, space-based imaging provides one of the most critical inputs to our scientific understanding of the whole Earth system. With the rapid increase in the number of medium- to high-resolution imaging sensors, there is increasing need for standard calibration methodology. An increase in sensor fusion, in which researchers […]

PlanetScope Time-series Used to Understand Vegetation Phenology

Paper

Change in vegetation color, chemistry and metabolic activity is one of the most striking signals of life in our biosphere. Satellite imagery plays an important role in effectively retrieving and mapping these vegetation changes over time—also called phenology. The rapid revisit period of the PlanetScope cubesat constellation provides researchers with a unique […]

Dove Imagery Used to Map Biomass in Coastal Wetlands

Paper

Coastal wetlands, especially salt marshes, store vast amounts of terrestrial carbon both above and belowground. Conserving and restoring them can help sequester such carbon, but sea-level rise and other anthropogenic threats risk liberating these long-term carbon stores to the atmosphere where they would contribute to climate change. Gwen Miller, a Ph.D. Student […]

Dove Imagery Used for Bathymetric Mapping

Paper

Satellite-derived bathymetry has numerous applications, including enhanced mapping and classification of bathymetric features such as coral reefs and seagrass meadows, as well as use in maritime navigation and coastline infrastructure. Dimitris Poursanidis from the Foundation for Research and Technology in Hellas, with colleagues from the German Aerospace Centre, used Planet’s Dove images […]

Mapping Landslide Susceptibility in Dove Imagery after the 2018 Tomakomai Earthquake

Paper

Globally, landslides kill ~5,000 people per year. If landslides—including rock falls, mudslides and other surface failures—can be better predicted, these deaths could be avoided. Landslides are highly heterogeneous, both spatially and temporally. They are more common in the steep, mountainous regions of the Earth, but also more frequent during particular seasons due […]

Semi-arid Rangeland Phenology Revealed with the Planet Dove Constellation

Paper

Temporal resolution is one of four axes by which one may judge the value of a remote sensing data source. Unlike spatial, spectral and radiometric resolution, temporal resolution can be used to decompose the day-to-day dynamics of ecosystems, revealing their phenology—the natural processes by which ecosystems (particularly vegetation) change over time. A […]

River Morphology Dynamics Revealed with Dove Imagery

Paper

The movement of river sediment influences many aspects of land management, including water quality and the life cycle of dams and other impoundments. Hydrologists will benefit from improved methodologies to track river sediment flow and geomorphological evolution of the river channel. Robert Strick, from the University of Brighton, and colleagues used a […]

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