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60 results for “water occurrence”
Landsat bands (cloud free), tree cover (2000, 2010), bare-ground and surface water occurrence at 250 m based on GlobalForestWatch and USGS
<p>Landsat bands (cloud free) and tree cover (2000) based on Hansen et al. (2013), global surface water occurrence based on Pekel at al. (2016), and tree cover and bare-ground cover (2010) based the USGS land cover mapping projects (University of Maryland, Department of Geographical Sciences and USGS). All layers resampled to spatial resolution 1/480 d.d. (about 250 m) using gdalwarp with "average" resampling. Antarctica is not included. Original layers are available at 30 m resolution.</p> <p>If you discover a bug, artifact or inconsistency in the maps, or if you have a question please use some of the following channels:</p> <ul> <li>Technical issues and questions about the code: <a href="https://gitlab.com/openlandmap/global-layers/issues">https://gitlab.com/openlandmap/global-layers/issues</a> </li> <li>General questions and comments: <a href="https://disqus.com/home/forums/landgis/">https://disqus.com/home/forums/landgis/</a></li> </ul> <p>All files internally compressed using "COMPRESS=DEFLATE" creation option in GDAL. File naming convention:</p> <ul> <li>lcv = theme: land cover,</li> <li>bareground = variable: occurrence of bareground,</li> <li>landsat.usgs = determination method: Landsat landcover at 30 m resolution project (https://landcover.usgs.gov/glc/),</li> <li>p = probability or fraction,</li> <li>250m = spatial resolution / block support: 250 m,</li> <li>s0..0cm = vertical reference: land surface,</li> <li>2010..2010 = time reference: year 2010,</li> <li>v1.0 = version number: 1.0,</li> </ul>
Water surface occurrence and recurrence from the article "Amazon's 2023 Drought: Sentinel-1 Reveals Extreme Rio Negro River Contraction"
<p>This data package contains the 10 m spatial resolution occurrence and recurrence water surface masks from the article "Amazon's 2023 Drought: Sentinel-1 Reveals Extreme Rio Negro River Contraction" . These maps have been produced with Sentinel-1 images (10 m) and a Deep Learning method for image segmentation called U-net, methods and data are fully described in the article. Water surface occurrence is computed for the period 2022-2023 and indicates the percentage of time that a pixel is classified as water (100%: always water, 0%: never water, and values between 0 and 100 indicate seasonality). Water surface recurrence is computed for the period 2022-2023 and indicates the number of times that a pixel was classified as a water surface, i.e., 35 indicates that the pixel was classified 35 times as a water surface during the 2022-2023 period. The total size of the dataset is 158 Mo and is distributed in two Geotiffs, one for the water surface occurence and one for the water surface. When using this dataset, please cite the original article <a href="https://doi.org/10.3390/rs16061056">https://doi.org/10.3390/rs16061056</a></p>
Global river density, seasonal and surface water occurrence and upstream area at 250 m in the Goode Homolosine projection
<p>Several layers describing density of surface water / streams projected to the <a href="https://en.wikipedia.org/wiki/Goode_homolosine_projection">Good Homolosine projection</a>. List of layers included:</p> <ul> <li>hyd_log1p.upstream.area_merit.hydro_m = Upstream Drainage Area based on the <a href="http://hydro.iis.u-tokyo.ac.jp/~yamadai/MERIT_Hydro">MERIT Hydro</a>,</li> <li>hyd_river.density_gloric_p = rasterized <a href="https://www.hydrosheds.org/page/gloric">Global River Classification (GLORIC)</a> DB,</li> <li>lcv_water.occurance_jrc.surfacewater_p = Surface Water based on the JRC's <a href="https://global-surface-water.appspot.com/">Global Surface Water</a>,</li> <li>lcv_water.seasonal_probav.glc.lc100_p = Seasonal Inland Water probability based on the <a href="https://lcviewer.vito.be/">Copernicus LC100 map</a>,</li> <li>lcv_wetlands.cw_upmc.wtd_c = composite wetland (CW) map based on <a href="https://doi.org/10.1594/PANGAEA.892657">Tootchi et al. (2019)</a>,</li> <li>Goode_Homolosine_domain_250m.tif = map domain prepared by <a href="https://doi.org/10.5281/zenodo.1475152">Luís de Sousa</a>,</li> <li>tiles_GH_100km_land.gpkg = 100 km x 100 km tiling system covering the land mass,</li> </ul> <p>Important notes: Processing steps are described in detail <strong><a href="https://gitlab.com/openlandmap/global-layers/tree/master/input_layers/WaterDensity">here</a></strong>. Antartica is not included. Reprojecting maps to Goode Homolosine projection can be cumbersome and small amount of artifacts at the edges of the map can be anticipated.</p> <p>These maps were develop in connection to the <a href="http://www.OpenLandMap.org">OpenLandMap.org</a> initiative.</p> <p>If you discover a bug, artifact or inconsistency in the maps, or if you have a question please use some of the following channels:</p> <ul> <li>Technical issues and questions about the code: <a href="https://gitlab.com/openlandmap/global-layers/issues">https://gitlab.com/openlandmap/global-layers/issues</a> </li> <li>General questions and comments: <a href="https://disqus.com/home/forums/landgis/">https://disqus.com/home/forums/landgis/</a></li> </ul> <p>All files internally compressed using "COMPRESS=DEFLATE" creation option in GDAL. File naming convention:</p> <ul> <li>hyd = theme: hydrology and water dynamics,</li> <li>log1p.upstream.area = variable: log(X+1)*10 of the upstream area,</li> <li>merit.hydro = determination method: MERIT Hydro,</li> <li>m = mean value,</li> <li>250m = spatial resolution / block support: 250 m,</li> <li>b0..0cm = vertical reference: surface,</li> <li>2017 = time reference: period 2017,</li> <li>v0.1 = version number: 0.1,</li> </ul>
NEON Biorepository Surface Water Microbe Collection (Sterivex Filters) (repackaging of occurrences published by the NEON Biorepository Data Portal)
This collection contains surface water microbe samples collected on 67 mm long, 1.7 cm diameter, 0.22 um Sterivex capsule filters (NEON sample class: amc_fieldCellCounts_in.archiveID). Surface water microbe samples are collected at the same time and location as surface water cell count samples and surface water chemistry samples once per month in wadeable streams (12 times per year) and every-other month in lakes and rivers (6 times per year). Details on sampling locations and timing are provided in the NEON document titled Surface Water Chemistry Sampling in Aquatic Habitats (https://data.neonscience.org/documents). In wadeable streams, surface water microbe samples are collected near the downstream S2 sensor location. In lakes, microbial samples are collected near the the 'buoy', 'littoral 1', and 'littoral 2' sensors, and sampling depth(s) is dependent on lake stratification. In rivers, microbial samples are collected near the buoy sensor. Water samples are filtered on 0.22 um Sterivex capsule filters, capped and flash-frozen in the field. Sterivex filters are archived at the NEON Biorepository at -80 degrees Celsius. See related links below for protocol.
Fig.ç1.C ollection sites of pelagic caligids including 3 stations in Japanese waters (St. 2–4, 2010) and 1 station in the Gulf of ffiailand (St. 1, 2006). in Occurrence of Caligid Copepods (Crustacea) in Plankton Samples Collected from Japan and Ŋailand, with the Description of a New Species
Fig.ç1.C ollection sites of pelagic caligids including 3 stations in Japanese waters (St. 2–4, 2010) and 1 station in the Gulf of ffiailand (St. 1, 2006).
Text-fig. 1. Locality map with the approximate extent of Clarkia Lake during Miocene times in what is today northern Idaho, USA. Black dots mark three of the localities yielding the Miocene Clarkia flora; the fossil leaf of Nymphaea sp. described here comes from locality P-33. Other symbols: Dashed lines for county boundaries; a thin dotted line for Idaho State Hwy 3; a triangle for the local peak of Bechtel Butte; and a star for the town of Clarkia. Inset: Location of the map in northern Idaho. Abbreviations: WA – Washington state, OR – Oregon, ID – Idaho, MT – Montana. Map redrawn from Ladderud et al. (2015). in First Water Lily, A Leaf Of Nymphaea Sp., From The Miocene Clarkia Flora, Northern Idaho, Usa: Occurrence, Taphonomic Observations, Floristic Implications
Text-fig. 1. Locality map with the approximate extent of Clarkia Lake during Miocene times in what is today northern Idaho, USA. Black dots mark three of the localities yielding the Miocene Clarkia flora; the fossil leaf of Nymphaea sp. described here comes from locality P-33. Other symbols: Dashed lines for county boundaries; a thin dotted line for Idaho State Hwy 3; a triangle for the local peak of Bechtel Butte; and a star for the town of Clarkia. Inset: Location of the map in northern Idaho. Abbreviations: WA – Washington state, OR – Oregon, ID – Idaho, MT – Montana. Map redrawn from Ladderud et al. (2015).
Text-fig. 2. Nymphaea sp. from the Miocene Clarkia Lake flora, Locality P-33. a: Photograph of the fossil leaf. b: Sketch of leaf showing the salient features of shape, basal lobes and margin, eccentric insertion point of the abaxial petiole, and primary actinodromous venation. Dashed lines represent torn edge of lamina; dotted line is outline of right basal lobe. Line drawing by P. Martin Sander. Scale bar applies to both photo and drawing. in First Water Lily, A Leaf Of Nymphaea Sp., From The Miocene Clarkia Flora, Northern Idaho, Usa: Occurrence, Taphonomic Observations, Floristic Implications
Text-fig. 2. Nymphaea sp. from the Miocene Clarkia Lake flora, Locality P-33. a: Photograph of the fossil leaf. b: Sketch of leaf showing the salient features of shape, basal lobes and margin, eccentric insertion point of the abaxial petiole, and primary actinodromous venation. Dashed lines represent torn edge of lamina; dotted line is outline of right basal lobe. Line drawing by P. Martin Sander. Scale bar applies to both photo and drawing.
Рис. 4. Частота встречаемости водных брюхоногих моллюсков Калининградской области (%). Fig. 4. The occurrence frequency of gastropods of Kaliningrad Region (%). in Spatial distribution of gastropods (Mollusca: Gastropoda) from the Kaliningrad Region (Russia) water bodies
Рис. 4. Частота встречаемости водных брюхоногих моллюсков Калининградской области (%). Fig. 4. The occurrence frequency of gastropods of Kaliningrad Region (%).
Fig. 2 in Short communication On the occurrence of the invasive Atlantic blue crab Callinectes sapidus Rathbun 1896 (Decapoda: Brachyura: Portunidae) in Sicilian inland waters
Fig. 2 - Neighbor-Joining tree based on a 659-bp long fragment of the mtDNA COI gene of Callinectes sapidus using Kimura-2- parameter distance model. The different clades are coloured according to their lineage as described by Windsor et al., 2019: clear blue, Lineage 1 (northwestern Atlantic and Gulf of Mexico); pink, Lineage 2 (Caribbean region); orange, Lineage 3 (Brazil). Novel sequences are reported in bold. The analysed specimens are reported using the GenBank® Accession numbers listed also in Table S1. / Albero Neighbor-Joining basato su un frammento lungo 659-pb del gene mtDNA COI di Callinectes sapidus, utilizzando il modello di distanza "Kimura-2-parameter". I diversi cladi sono colorati secondo il loro lignaggio come descritto da Windsor et al., 2019: blu chiaro, "Lineage 1" (Atlantico nord-occidentale e Golfo del Messico); rosa, "Lineage 2" (regione caraibica); arancione, "Lineage 3" (Brasile). Le sequenze nuove sono riportate in grassetto. Gli esemplari analizzati sono riportati utilizzando i numeri di accesso Gen- Bank® elencati anche nella Tabella S1.
Fig. 1 in Short communication On the occurrence of the invasive Atlantic blue crab Callinectes sapidus Rathbun 1896 (Decapoda: Brachyura: Portunidae) in Sicilian inland waters
Fig. 1 - Location of the sampling sites. Red circles indicate the new Sicilian sites where Callinectes sapidus (inbox) was sampled; 1) Imera Meridionale river. 2) Irminio river. White circles indicate previous records of the species (see Mancinelli et al., 2021 for further information). / Localizzazione dei siti campionati. I cerchi rossi indicano i nuovi siti siciliani dove è stato campionato Callinectes sapidus (nel riquadro); 1) fiume Imera Meridionale. 2) fiume Irminio. I cerchi bianchi indicano precedenti record della specie (vedi Mancinelli et al., 2021 per ulteriori informazioni).
Fig. 2 in Occurrence of Amblyomma mixtum on the water buffalo (Bubalus bubalis) in Mexico
Fig. 2. Morphological characters used for Amblyomma mixtum identification: Dorsal view A) Female, B) Male; Zoom of the notum of the female C) and the scutum of the male D); Dorsal view of the capitulum of the female E) and male F); Ventral view of the female G); Dentition of the hypostome H).
Fig. 1. A in Shallow-Water Occurrence ofWiwaxiain the Middle Cambrian of the Barrandian Area, Czech Republic
Fig. 1. A. Location of the Skryje−Týřovice Basin and the studied area within the Bohemian Massif and Czech Republic. B. Geology of the area of "Orthis small quarry" (modified after Mašek et al. 1997). C. Stratigraphy of the Skryje−Týřovice Basin (according to Fatka et al. 2011).
Fig. 3 in Shallow-Water Occurrence ofWiwaxiain the Middle Cambrian of the Barrandian Area, Czech Republic
Fig. 3. Palaeogeographical distribution of the genus Wiwaxia in the lower and middle Cambrian. 1, Wiwaxia corrugata (Matthew, 1899), Burgess Shale of the Stephen Formation, British Columbia, USA (Conway Morris 1985a); 2, Wiwaxia corrugata (Matthew, 1899), Mount Cap Formation, northwestern Canada (Butterfield 1994); 3, Wiwaxia cf. corrugata (Matthew, 1899), Spence Shale, west−central Utah, USA (Conway Morris and Robison 1988; Robison 1991); 4, Wiwaxia taijiangensis Zhao, Qian, and Li, 1994, Kaili Formation, Guizhou, China (Zhao et al. 1994); 5, Wiwaxia sp., Emu Bay Shale, South Australia (Nedin unpublished material, Porter 2004); 6, Wiwaxia sp., Monastery Creek Formation, North Australia (Southgate and Shergold 1991; Porter 2004); 7, Wiwaxia sp., Sinsk Formation, Siberia (Ivantsov et al. 2005a, b); 8, Wiwaxia sp. cf. Wiwaxia corrugata (Matthew, 1899), Slapnice Member, Buchava Formation, Czech Republic (this paper). Early Cambrian palaeogeography modified after McKerrow et al. (1992).
Fig. 2 in Shallow-Water Occurrence ofWiwaxiain the Middle Cambrian of the Barrandian Area, Czech Republic
Fig. 2. Isolated sclerites of Wiwaxia sp. cf. Wiwaxia corrugata (Matthew, 1899), Slapnice Member of the Buchava Formation, Skryje−Týřovice Basin, Barrandian area, Czech Republic. A, B. Part and counterpart of CGS XB 800a. C. CGS XB 800b. D. CGS XB 800c. E. CGS XB 800d. F. CGS XB 800e. A1–C1, D, E1–F1. Photos of scales. A2–C2, E2–F2. Drawings of the respective specimens. A3. Example of a typical assemblage of the sclerite of Wiwaxia (arrow) with fragments of graptolites; slab CGS XB 800.
Linked collectors and determiners for: The occurrence, distribution and biology of invasive fish species in fresh and brackish water bodies of NE Morocco.
Natural history specimen data linked to collectors and determiners held within, "The occurrence, distribution and biology of invasive fish species in fresh and brackish water bodies of NE Morocco". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/55347db9-46a3-449d-8e55-ba6ed02e4820">https://bionomia.net/dataset/55347db9-46a3-449d-8e55-ba6ed02e4820</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/55347db9-46a3-449d-8e55-ba6ed02e4820">https://gbif.org/dataset/55347db9-46a3-449d-8e55-ba6ed02e4820</a>. Formatted as a Frictionless Data package.
Fig. 1 in Occurrence of Amblyomma mixtum on the water buffalo (Bubalus bubalis) in Mexico
Fig. 1. Occurrence of Amblyomma mixtum in the perianal region of a water buffalo (adult stage).
Figure 1 in A report on the occurrence of two exotic cold-water fishes in the natural water bodies of Arunachal Pradesh-Northeast India
Figure 1. Map of Arunachal Pradesh showing different sites where the exotic salmon are reported.
Nonylphenol in soil-celery system simulating long-term reclaimed water irrigation: occurrence, migration, and health risk assessment
<p>The data uploaded were the biomass of celery tissues and the concentraion of nonylphenol in soil and celery tissues after harvest.</p>
Distribution. Throughout the warmest waters of the Indian and Pacific oceans, it has a cross-equatorial distribution occurring from as far N as the Arabian Sea, S India, Japan, and Mexico to as far S as South Africa and Australia; its occurrence appears to be relatively continuous within its distribution; it has not been recorded in the Atlantic Ocean. in Ziphiidae
Distribution. Throughout the warmest waters of the Indian and Pacific oceans, it has a cross-equatorial distribution occurring from as far N as the Arabian Sea, S India, Japan, and Mexico to as far S as South Africa and Australia; its occurrence appears to be relatively continuous within its distribution; it has not been recorded in the Atlantic Ocean.
Distribution. Subantarctic and Antarctic waters from Antarctica to South Africa, S Australia, N New Zealand, and South America. Its occurrence appears to be relatively continuous within its distribution. in Ziphiidae
Distribution. Subantarctic and Antarctic waters from Antarctica to South Africa, S Australia, N New Zealand, and South America. Its occurrence appears to be relatively continuous within its distribution.
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International Brain Laboratory public data
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