Results 101 to 110 of about 165,753 (253)
1579 NM Fiber Laser Source for Spaceborne Monitoring of Carbon Dioxide
We report on the development of a 1579 nm pulsed fiber laser source with high peak-power, intended to be used as a lidar source for CO2 monitoring from space.
Cézard Nicolas +6 more
doaj +1 more source
Remote sensing technology applications in forestry and REDD+ [PDF]
Advances in close-range and remote sensing technologies drive innovations in forest resource assessments and monitoring at varying scales. Data acquired with airborne and spaceborne platforms provide us with higher spatial resolution, more frequent ...
Calders, Kim +3 more
core +3 more sources
A novel spaceborne lidar calibration technique: the multi-calibration lidar experiment [PDF]
Although the noticeable progress achieved by ground-based lidars, using lidars as an operational spaceborne i nstruments still poses issu es to be solved. A key issue is the long-term stability of the instrument over the mission lifetime, as a whole as well as at the level of each subsystem; another important issue is related to the processes of ...
openaire +1 more source
Estimating Plant Species Richness With Sentinel and Landsat Data Across Ecosystems in China
438 field plots were used to estimate plant diversity across ecosystems; 18 spectral indices were derived from Sentinel and Landsat data; EVI, DVI, PSRI, NDVI, PRI, GNDVI, and GMEVI were identified as powerful indicators for predicting plant alpha diversity.
Keman Wang +4 more
wiley +1 more source
Ocean subsurface studies with the CALIPSO spaceborne lidar [PDF]
AbstractThe primary objective of the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) mission is to study the climate impact of clouds and aerosols in the atmosphere. However, recent studies have demonstrated that CALIPSO also collects information about the ocean subsurface.
Xiaomei Lu +4 more
openaire +1 more source
Abstract Natural regeneration is essential for maintaining functionally diverse and resilient plant communities in human‐modified landscapes. To design and implement successful conservation and restoration initiatives in these landscapes, research on the environmental and anthropogenic drivers of natural regeneration must be scaled up beyond ...
Luc Schmid +2 more
wiley +1 more source
Lidar measurements from space for tropospheric chemistry investigations: Summary of workshop overview presentation [PDF]
Over the past decade, NASA has played a lead role in defining the scientific objectives and technology requirements for spaceborne lidar investigations of the atmosphere.
Browell, Edward V.
core +1 more source
The 2020 Pettimudi debris flow in the Western Ghats of India killed 70 people. Our study using stereo‐DEM, UAV‐based LiDAR data, and field data estimated the sediment loss as 17 × 104 m3. Abstract Computation of sediment volume and accurate modeling of run‐out using high‐resolution digital elevation models (DEMs) are essential for assessing debris flow
Krishnapriya V. K. +10 more
wiley +1 more source
Peering Inside Tropical Cyclones With the WIVERN Space‐Borne Doppler Radar
Abstract The WIVERN (Wind Velocity Radar Nephoscope) mission significantly enhances the global tropical cyclone observing system. Operating from a 500 km near‐polar orbit, the 3 m diameter conically scanning antenna provides an 800 km swath. The radar operated at 94 GHz (3 mm wavelength) provides high‐resolution observations with a vertical resolution ...
Alessandro Battaglia +11 more
wiley +1 more source
Influences of Structural and Species Diversity on Forest Resistance to Drought
Forest structural richness and species evenness respectively show positive and negative relationships with forest resistance to drought. These relationships between richness and resistance and between evenness and resistance become stronger under more severe droughts.
Erin T. H. Crockett +11 more
wiley +1 more source

