Results 51 to 60 of about 4,061 (205)

Digitisation of herbarium specimens to the benefit of research: An African perspective focusing on South Africa and Western Indian Ocean Island states

PLANTS, PEOPLE, PLANET, EarlyView.
Botanical exploration, discovery and conservation rely heavily on access to herbarium collections. Recently, digital access to label information, including georeferenced locality data, and images of herbarium specimens available online have greatly increased usage of herbarium specimen data.
Ronell R. Klopper, Hester M. Steyn, Cláudia Baider, Benny Bytebier, Anisha Dayaram, F. B. Vincent Florens, Nivohenintsoa Rakotonirina, Domitilla Raimondo, Marc Sosef, M. Marianne le Roux   +9 more
wiley   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

PLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha, Anselmo Nogueira, Matheus Colli‐Silva, Juliana Gastaldello Rando   +3 more
wiley   +1 more source

A SYSTEMATIC COMPARISON OF DIRECT AND IMAGE-BASED GEOREFERENCING IN CHALLENGING URBAN AREAS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Image-based mobile mapping systems enable an efficient acquisition of georeferenced image sequences, which can be used for geo-data capture in subsequent steps. In order to provide accurate measurements in a given reference frame while e.g.
S. Cavegn, S. Cavegn, S. Nebiker, N. Haala   +3 more
doaj   +1 more source

Digitisation as archival intermediary: Quantifying and qualifying Greta B. Stevenson's mycological collector networks

PLANTS, PEOPLE, PLANET, EarlyView.
Mass digitisation of natural science collections and archives has increasingly become a priority for scientific heritage institutions. Here, we explore the potential of mass digitisation to improve our understanding of the nature and history of scientific collaboration. Focusing on mycologist Greta B.
Christopher Kreuzer, Geoff S. Ridley, Nathan E. C. Smith   +2 more
wiley   +1 more source

Climate change‐driven expansion of goosegrass highlights risks to global food production

Pest Management Science, EarlyView.
Climate change is expanding the climatic suitability of Eleusine indica into temperate agricultural regions, increasing its overlap with major soybean and maize production areas. These findings highlight a growing global threat to food security and the need for proactive weed management strategies.
Thiago Deomar Ludwig, Ednaldo Alexandre Borgato, Luis Antonio de Avila, Laura Montipó Roncaglia, Maria Imaculada Zucchi   +4 more
wiley   +1 more source

A Sequential Aerial Triangulation Algorithm for Real-time Georeferencing of Image Sequences Acquired by an Airborne Multi-Sensor System

Remote Sensing, 2012
Real-time image georeferencing is essential to the prompt generation of spatial information such as orthoimages from the image sequence acquired by an airborne multi-sensor system.
Kyoungah Choi, Impyeong Lee
doaj   +1 more source

Georeferencing for Research Use (GRU): An integrated geospatial training paradigm for biocollections researchers and data providers [PDF]

Research Ideas and Outcomes, 2018
Georeferencing is the process of aligning a text description of a geographic location with a spatial location based on a geographic coordinate system. Training aids are commonly created around the georeferencing process to disseminate community standards
Katja Seltmann, Sara Lafia, Deborah Paul, Shelley James, David Bloom, Nelson Rios, Shari Ellis, Una Farrell, Jessica Utrup, Michael Yost, Edward Davis, Rob Emery, Gary Motz, Julien Kimmig, Vaughn Shirey, Emily Sandall, Daniel Park, Christopher Tyrrell, R. Sean Thackurdeen, Matthew Collins, Vincent O'Leary, Heather Prestridge, Christopher Evelyn, Ben Nyberg   +23 more
doaj   +2 more sources

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

Self-portrait of a city. City and Architecture in Bologna in the maps between the 18th and 19th centuries

Disegnare con, 2012
The plan, being project tool and representation at the same time, allows an understanding, by means of ancient cartography, of the ancient city as an entity with its own identity connotation, whose definition derives mainly from the clarity of the ...
Gabriele Bitelli, Giorgia Gatta, Aurelio Muzzarelli, Maura Savini, Diana Tura   +4 more
doaj   +1 more source

EVALUATION OF SAR DATA AS SOURCE OF GROUND CONTROL INFORMATION: FIRST RESULTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The high resolution imaging modes of modern SAR sensors has made SAR data compatible with optical images. SAR data offers various capabilities which can enhance the geometric correction process of optical images (accurate, direct and ground-independent
D. I. Vassilaki, C. Ioannidis, A. A. Stamos   +2 more
doaj   +1 more source