Results 51 to 60 of about 33,462 (282)

Effects of UAV flight height on biomass estimation of desert shrub communities

open access: yesEcological Indicators, 2023
Accurate estimation of desert vegetation biomass is crucial for monitoring changes in carbon stocks and productivity status. Unmanned aerial vehicle (UAV) remote sensing allows large-scale biomass surveys at the individual or patch scale.
Peng Mao   +5 more
doaj   +1 more source

Estimating Canopy Height at Scale

open access: yesCoRR
ICML Camera-Ready, 17 pages, 14 figures, 7 ...
Jan Pauls   +8 more
openaire   +4 more sources

Correction of Terrain Effects on Forest Canopy Height Estimation Using ICESat-2 and High Spatial Resolution Images

open access: yesRemote Sensing, 2022
The Ice, Cloud, and Land Elevation Satellite–2 (ICESat–2) carries the Advanced Topographic Laser Altimeter System (ATLAS), enabling global canopy height measurements from forest canopy height models (CHMs). Topographic slope is a crucial factor affecting
Bin Li   +6 more
doaj   +1 more source

Deep learning-driven forest canopy height mapping in boreal regions through multi-source remote sensing fusion: Integrating Sentinel-1/2, PALSAR, and ICESat-2/LVIS data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Forest canopy height is a key indicator for estimating forest carbon sinks and managing vegetation growth. Existing methods for fusing optical and Light Detection and Ranging (LiDAR) data still have limitations in canopy height estimation for boreal ...
Chenxi Liu   +6 more
doaj   +1 more source

Mapping Canopy Heights of Poplar Plantations in Plain Areas Using ZY3-02 Stereo and Multispectral Data

open access: yesISPRS International Journal of Geo-Information, 2019
Forest canopy height plays an important role in forest management and ecosystem modeling. There are a variety of techniques employed to map forest height using remote sensing data but it is still necessary to explore the use of new data and methods.
Mingbo Liu   +3 more
doaj   +1 more source

Lidar derived mean profile canopy height.

open access: yes, 2013
An example of the differences in vertical structure of areas differing in mean canopy height (MCH). A) LiDAR-derived mean canopy height (MCH) for a subset of the study area, polygons marked 1 and 2 delineate two patches of low and high canopy height ...
Matteo Detto (474104)   +3 more
core   +1 more source

Vegetation canopy height estimation in dynamic tropical landscapes with TanDEM‐X supported by GEDI data [PDF]

open access: yes, 2022
Vegetation canopy height is a relevant proxy for aboveground biomass, carbon stock, and biodiversity. Wall-to-wall information of canopy height with high spatial resolution and accuracy is not yet available on large scales.
Christian Stiegler   +10 more
core   +1 more source

Unmanned aerial vehicle based tree canopy characteristics measurement for precision spray applications

open access: yesSmart Agricultural Technology, 2023
The critical components for applying the correct amount of agrochemicals are fruit tree characteristics such as canopy height, canopy volume, and canopy coverage.
Md Sultan Mahmud   +4 more
doaj   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

open access: yesAdvanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

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