Results 91 to 100 of about 2,782 (273)

The performance of different landform classification methods as assessed by their relationship with geotemathic variables [PDF]

In this study, we present a comprehensive analysis of landforms derived from a 10-meter resolution digital terrain model (DTM) using unsupervised classification with different combination of morphometric variables and established algorithms, including ...
Disperati, Leonardo, D'Addario, Enrico, Masoni, Giulio, Pippi, Moira, Marques e Silva Rocha de Oliveira, Eduardo   +4 more
core   +1 more source

Mapping Scytonemin Pigment Content and Biocrust Functional Indicators Using High‐Resolution Multispectral Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution multispectral imagery combined with machine learning can accurately predict key biocrust functional indicators, particularly the UV‐protective pigment scytonemin, across dryland ecosystems. Using fine‐scale imagery acquired in the Chihuahuan Desert and Colorado Plateau, we identified spectral bands strongly ...
Raúl Román, Tong Qiu, Fernando T. Maestre, Elizabeth A. La Rue, Sergio Vargas Zesati, Anthony Schaefer, Ryan V. Trexler, Nicole Pietrasiak, Estelle Couradeau   +8 more
wiley   +1 more source

DEVELOPMENT OF LANDFORM CLASSIFICATION USING DIGITAL ELEVATION MODEL

, 1994
Inclination of the trend surface, the frequency of ridges and valleys, and the frequency of the break of inclination were abstracted from the digital topographical map (DEM) to make an automated landform classification. It was found that current landform
岩橋, 純子
core  

Geomorphometric analysis of landform pattern using topographic position and ASTER GDEM [PDF]

, 2017
A number of research have been carried out on geomorphology using a conventional approach to classify the landform; this has a tendency of producing misleading result, due to ruggedness and inaccessibility of the terrain.
Tijani, Ibrahim, Pradhan, Biswajeet, Pradhan, B, Usman Salihu Lay, Lay, Usman Salihu, Tijani, I, Jibrin, G, Biswajeet Pradhan, Ibrahim Tijani, Jibrin, Gambo, Lay, US, Gambo Jibrin   +11 more
core   +1 more source

Isolation, Insularity and Resilience: A Review of the Geophysical, Socioeconomic, and Environmental Vulnerabilities of Gran Canaria and Lesvos Islands for Policy Interventions to Global Change

Sustainable Development, EarlyView.
ABSTRACT The dynamic nature of small islands being geographically isolated and their perceived connectedness with global networks complicates research attempts to draw general conclusions on whether insularity leads to marginalization or strengthens their resilience for sustainable development.
Toheeb Lekan Jolaosho, Mazen Marouani, Takwa Boughanmi   +2 more
wiley   +1 more source

Habitat Utilization Preference by Small Mammals Is Associated With Geomorphic and Soil Properties: A Case Study of the Plateau Pika From the Eastern Qinghai‐Tibet Plateau [PDF]

Ecol Evol
This study, through a large‐scale survey, reveals a close relationship between plateau pika habitat use preferences and geomorphic and soil characteristics. The findings indicate that pikas prefer flat, sun‐facing terrain near water sources, as well as specific ranges of soil depth, organic matter, and moisture.
Qin F, Chen Y, Tang Z, Oosthuizen M, An S, Wei W.   +5 more
europepmc   +2 more sources

Comparison of data handling techniques for modeling bat acoustic activity

Wildlife Society Bulletin, EarlyView.
We deployed 169 acoustic recording units (A) across the Raystown Lake Project, Huntingdon County, Pennsylvania, USA (B). Echolocation recordings were used to evaluate alternative acoustic data handling methods and their effects on bat acoustic activity model predictions.
Zackary W. Isenhour, Elizabeth A. Hunter, Jesse L. De La Cruz, W. Mark Ford   +3 more
wiley   +1 more source

Landform classification based on topographic position Index: (A case study in Ulaanbaatar city)

, 2022
Earth surface study or Geomorphology is one of the fundamental physical geographic studies. The ultimate result of the geomorphological study is shown as a map and many geomorphological researchers have been developing their geomorphology-mapping ...
Bumtsend, Bayanjargal, Ekhjargal, Odbaatar, Tovuudorj, Renchinmyadag   +2 more
core  

Alleviation of phosphorus rather than nitrogen limitation driven by permafrost and landscape effects on Dahurian larch forests

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu, Liang Shi, Zhaopeng Song, Boyi Liang, Honglin He, Kun Yang, Weihua Zhang, Lisha Lyu, Anatoly S. Prokushkin, Hongyan Liu   +9 more
wiley   +1 more source

Multiscale Landforms Classification Based on UAV Datasets

Sustainability in Environment, 2018
<p><em>The advance uses of Unmanned Aerial Vehicles (UAV) in geosciences by producing very high spatial resolution Digital Surface Models (DSMs), the various UAV flight altitudes led to different scales DSM. In this paper, we analyzed terrain forms using Topographic Position Index (TPI), landforms extracted by Iwahashi and Pike method and ...
openaire   +2 more sources