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379 results for “trails”
Extracted trails from airborne laser scanning in the Oostvaardersplassen nature reserve
<p>Ungulates and other mammalian herbivores can create trails in dense vegetation by trampling and browsing. This can affect vegetation structure and results in the fragmentation of closed, high vegetation, with subsequent impacts on biodiversity. Manually mapping trails in the field or from aerial photographs can be challenging and time consuming, especially in inaccessible or difficult to access habitats such as wetlands and if trails occur beneath the canopy. Airborne laser scanning provides an alternative method because it penetrates vegetation canopies and efficiently obtains highly accurate data in the form of dense 3D point clouds. This repository consists of the extracted trails in wetland area of the Oostvaardersplassen nature reserve in the Netherlands using 3D airborne point cloud data (AHN4) and the manually created 50 plots of ground truth in two regions, i.e. grazed only by red deer and grazed by both red deer and geese. </p>
Sensible heat fluxes control cloud trail strength
<p>This dataset contains a minimal set of data used to create figures in Johnston et al. (2023) Sensible Heat Fluxes Control Cloud Trail Strength, Quarterly Journal of the Royal Meteorological Society. Additional liquid water path data from the control experiment (H250E250) is also provided to better visualise the cloud field in this central experiment.</p>
Transportation network system including trails, road construction history, and gates for the Andrews Experimental Forest, 1952-2011
Transportation network locations within the Andrews Experimental Forest. Includes locations of all the roads, trails, and gates within and around the forest. Original road layer was drawn on maps in 1992 and field validated. The road construction history (1952-1990) has been captured as an attribute. Roads were updated in 2004 to include roads that have been abandoned. Gates were field checked in 2004, as well as trail locations. The three data sets were updated after the 2008 LiDAR data was delivered. Roads were digitized on-screen from the bare-earth DEM, and gates were moved to match the new road network. Trails were updated for the 2011 Andrews map update. Many were located through GPS, and new trails were added. The original data is represented, as well as the updated datasets. The road network dataset is in an esri file geodatabase format, and the other datasets are in esri shapefile format, and all are in a zipped file format.
H.J. Andrews Forest Discovery Trail: An interpretation of place based on curriculum of interpretive learning trail and field trip support, 2016
The H.J. Andrews Experimental Forest (HJA) in the Oregon Cascades is one of 24 sites in the Long-Term Ecological Research (LTER) Network. It supports research on forests, streams, and watersheds, and fosters collaborations between ecosystem science, education, natural resource management, and the humanities. The site currently hosts 85 interdisciplinary research projects, as well as experiential training for undergraduate and graduate students. In addition, the HJA runs a vibrant professional development program for teachers. Because much of the HJA’s terrain is steep and occupied with sensitive research materials, middle and high school visits are limited to tours in designated areas. The Discovery Trail was developed in 2011 as a place for visitors (~1800 in 2014) to explore the forest and site research themes from HJA headquarters, but it is not yet amenable to unguided educational exploration. We have designed an interpretive learning trail and field trip support framework for the Discovery Trail. Our primary objective is to educate students about place while guiding them to reflect upon their own relationships with place and personal responsibility for stewardship behavior. Long-term place-based conservation research is woven with creative writing from the HJA writer’s residency program and paired with reflection and creative inquiry. Interactive trail stops enable students to engage the forest from multiple perspectives. The Discovery Trail is wired for intranet wifi and content and assessment will be delivered by digital media (i.e. iPads). We will evaluate conceptual learning according to the Framework for the Next Generation Science Standards, as well as observe affective changes in sense of place, empowerment, and expressions of care or empathy through analysis of student responses to the trail activities. Because conservation attitudes require not just knowledge about systems, but also emotional connections to the material, our learning experience will in
RFP01 Properties of large hillslope blocks and cliff faces along the cottonwood limestone near the konza prairie nature trail
This data is a collection of point observations and measurments of large rock fragments on grassland hillslopes. Data was collected from 30 hillslope transects that extend downslope perpidicular from the bedrock cliff formed from the Cottonwodd limestone. Transects are 30 meters long and 1 meter wide. Observations of blocks include properites such as size, shape, and surface weathering. This data set also includes observtions of cliff properties associated with each transpect location. Measurments we made in field by hand for rock fragments larger than pebble (>64mm).
GIS11 A GIS Coverage Defining Nature Trails on Konza Prairie (1982-present)
This dataset defines the nature trails found at Konza Prairie Biological Station (KPBS). The trails data shows locations of the different Konza maintained walking trails including leg distances and loop names. These data are available to download as zipped shapefiles (.zip), compressed Google Earth KML layers (.kmz).
SBC LTER: Land: Hydrology: Precipitation at El Capitan at Upper Bill Wallace Trail (EL202)
Precipitation was collected at El Capitan at Upper Bill Wallace Trail in the Santa Barbara coastal area (site ID: EL202). A Tipping Bucket rain gauge from either Qualimetrics (Model 6011B) or Sutron (Model 5600-0425-2) was used. Data are reported hourly, and times reflect the end of the each 1-hour interval.
Hepatitis D infection induces IFN-β-mediated NK cell activation and TRAIL-dependent cytotoxicity
<p>The dataset contains bulk RNA-seq read count matrices of NK cells from healthy donors after 48 h of co-culture with hepatitis D virus infected and non-infected HepG2-hNTCP cells. The samples are described in the table RNA-seq_samples.xls that is included with the count matrices. Further details are given in the publication associated with this dataset (Groth et al., <i>Front Immunol</i>, 2023, https://doi.org/10.3389/fimmu.2023.1287367).</p>
Bonanza Creek LTER GIS Data: Roads and Trails within 100km of Fairbanks
This data package contains roads and trails for the Bonanza Creek Experimental Forest in ArcGIS format. Geospatial_Data_Presentation_Form: vector digital data.
SBC LTER: Land: Hydrology: Precipitation at Arroyo Hondo at Upper Outlaw Trail (HO202)
Precipitation was collected at Arroyo Hondo at Upper Outlaw Trail in the Santa Barbara coastal area (site ID: HO202). A Tipping Bucket rain gauge from either Qualimetrics (Model 6011B) or Sutron (Model 5600-0425-2) was used. Data are reported hourly, and times reflect the end of the each 1-hour interval.
SBC LTER: Land: Hydrology: Santa Barbara County Flood Control District - Precipitation at Edison Trail (EdisonTrail252)
Precipitation was collected by the Santa Barbara County Flood Control District at Edison Trail (EdisonTrail252) in the Santa Barbara coastal area. Data are reported hourly, and times reflect the end of the each 1-hour interval. For more information, see https://www.countyofsb.org/pwd/hydrology.sbc
FIG. 1. — River bed forest along trail A in Updated checklist of French Guianan Asilidae (Diptera) with a focus on the Mitaraka expedition
FIG. 1. — River bed forest along trail A in tropical lowland rainforest at Mitaraka (photo: Marc Pollet).
Star Trails
<p>Honorable mention in the 2023 IAU OAE Astrophotography Contest, category Still images with smartphones-mobile devices: Star Trails, by Govind Gurjar.</p> <p>Taken in the darkness of Panotiya, Amartiya village, India, this image from October 2022 showcases beautiful star trails painting the night sky, receiving an honourable mention in the category of Still images taken exclusively with smartphones/mobile devices. With only a smartphone and a tripod, the photographer captured these trails — visual evidence of our planet's rotation, as each streak represents the apparent movement of the stars as the Earth spins, creating a captivating cosmic choreography of light. The distinct colours of the stars — some gleaming blue, others whitish — hint at their varying temperatures and compositions. Additionally, a subtle streak of an aeroplane momentarily intersects the timeless dance of the stars, juxtaposing the serene heavens with the bustling activity of life below.</p> <p>Credit: Govind Gurjar/IAU OAE (<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY 4.0</a>)</p>
Star Trail in the Southern Hemisphere with Bortle 4 Scale Light Pollution
<p>Winner in the 2023 IAU OAE Astrophotography Contest, category Still images with smartphones-mobile devices: Star Trail in the Southern Hemisphere with Bortle 4 Scale Light Pollution, by Slamat Riyadi.</p> <p>This breathtaking photo, captured under the clear night sky of Linggamekar Village, Cilimus, Kuningan, West Java, Indonesia on 25 June 2020, displays star trails sweeping across the southern hemisphere’s heavens. The star trails are due to Earth’s rotation causing the apparent motion of stars, creating these mesmerising arcs of light when followed over extended periods. Here, the point the stars rotate around (the South Celestial Pole) is close to the horizon, as the image was taken close to the equator. The photographer used the star trail feature on a smartphone, which captured a series of images over an extended period and stacked them together. The striking tree in the foreground adds depth to the image, contrasting the celestial motion above with its Earthly stillness, while also masking some of the surrounding light pollution. Different parts of the world offer diverse and stunning perspectives on the night sky, emphasising the importance of preserving dark skies everywhere.</p> <p>Credit: Slamat Riyadi/IAU OAE (<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY 4.0</a>)</p>
Star Trails of the Forbidden City
<p>Honorable mention in the 2023 IAU OAE Astrophotography Contest, category Still images with smartphones-mobile devices: Star Trails of the Forbidden City, by Stephanie Ziyi Ye.</p> <p>Beneath the celestial ballet of star trails that weave their way across the night sky, the Beijing Forbidden City stands as a testament to ancient celestial connections in this image captured in March 2022. Designed with a cosmic alignment in mind, the palace echoes the orientation of the North Star, also known as Polaris, a celestial anchor that has long guided navigators and symbolised steadiness in the sky. It was believed that the Emperor embodied the earthly representation of this pole star, bridging the realms between heaven and earth. In this harmonious one-hour exposure captured with a smartphone, the streaks of stars trace their nightly journey across the firmament, converging toward the North Star, reflecting the precision of both architectural design and celestial paths. The image receives an honourable mention in the category of Still images taken exclusively with smartphones/mobile devices.</p> <p>Credit: Stephanie Ziyi Ye/IAU OAE (<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY 4.0</a>)</p>
Venus and Mercury Trails
<p>Honorable mention in the 2023 IAU OAE Astrophotography Contest, category Still images of phases of Venus: Venus and Mercury Trails, by Marcella Giulia Pace.</p> <p>In this composite image, both Mercury (left) and Venus (right) can be seen heading into the sunset. The phases of each are beautifully captured as they descend. Not all planets or moons in the Solar System show phases as viewed from Earth. This phenomenon occurs because the orbits of Venus and Mercury are positioned between Earth’s orbit and the Sun, sometimes allowing us to see only part of the illuminated portion of each planet. These phases are similar to the phases we see of our own Moon.</p> <p>Credit: Marcella Giulia Pace (<a href="https://creativecommons.org/licenses/by/4.0/legalcode">CC BY 4.0</a>)</p>
РИС. 5. Живые особи Arion vulgaris на грунтовой тропинке (фото И.Н. Субботиной) FIG. 5. Live specimens of Arion vulgaris on a dirt trail (photo by I.N. Subbotina) in Новые находки синантропных слиЗней Limacus maculatus и Arion vulgaris (Mollusca, Gastropoda, Stylommatophora) в Беларуси
РИС. 5. Живые особи Arion vulgaris на грунтовой тропинке (фото И.Н. Субботиной) FIG. 5. Live specimens of Arion vulgaris on a dirt trail (photo by I.N. Subbotina)
Fig. 13. Zingiber shuanglongense C.L.Yeh & S.W.Chung, Shuanglung Logging Trail. A. Habit. B in Taxonomic revision of Zingiber (Zingiberaceae) of Taiwan
Fig. 13. Zingiber shuanglongense C.L.Yeh & S.W.Chung, Shuanglung Logging Trail. A. Habit. B. Leaf adaxial (left) and abaxial (right) surface. C. Ligule. D. Rhizome. E. Inflorescence. F. Flower. G. Bracts. H. Calyx tube. I. Corolla lobes. J. Labellum. K. Stamen and pistil. L. Ovary. M. Fruit. N. Seeds. Photos: L.P. Hsu.
Fig. 11. Zingiber oligophyllum K.Schum., Chading Trail. A. Habit. B in Taxonomic revision of Zingiber (Zingiberaceae) of Taiwan
Fig. 11. Zingiber oligophyllum K.Schum., Chading Trail. A. Habit. B. Leaf adaxial (left) and abaxial (right) surface. C. Ligule. D. Rhizome. E. Inflorescence. F. Flower. G. Bracts. H. Calyx tube. I. Corolla lobes. J. Labellum. K. Stamen and pistil. L. Ovary. M. Fruit. N. Seeds. Photos: L.P. Hsu.
Рис. 7. Δинамика проΑоΛжитеΛьности фаз активности и покоя ювениΛьных особей гренΛанΑского Λемминга посΛе первого выхоΑа из норы в хоΑе набΛюΑений с 12 июΛя по 5 августа 1987 г., о. ВрангеΛя Fig. 7. Dynamics of the duration of rest-activity phases and rest of juveniles of the Greenland lemming after the first exit from the burrow during the observations from 12 July to 5 August, 1987, Wrangel Island in Territorial behaviour of the greenlandic lemming (Dicrostonyx groenlandicus Trail, 1823) on Wrangel Island
Рис. 7. Δинамика проΑоΛжитеΛьности фаз активности и покоя ювениΛьных особей гренΛанΑского Λемминга посΛе первого выхоΑа из норы в хоΑе набΛюΑений с 12 июΛя по 5 августа 1987 г., о. ВрангеΛя Fig. 7. Dynamics of the duration of rest-activity phases and rest of juveniles of the Greenland lemming after the first exit from the burrow during the observations from 12 July to 5 August, 1987, Wrangel Island
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.