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484 results for “water quality”
Year 2015, 15 minute interval, water quality measurements of water column temperature, salinity, oxygen, and depth near the mouth of Plum Island Sound, Massachusetts
Year 2015, 15 minute measurements of water column temperature, salinity, oxygen and depth in Plum Island Sound at the Ipswich Bay Yacht Club, Ipswich, MA.
Year 2016, 15 minute interval, water quality measurements of water column temperature, salinity, oxygen, and depth near the mouth of Plum Island Sound, Massachusetts
Year 2016, 15 minute measurements of water column temperature, salinity, oxygen and depth in Plum Island Sound at the Ipswich Bay Yacht Club, Ipswich, MA.
PIE LTER, Year 2017, 15 minute interval, water quality measurements of water column temperature, salinity, oxygen, and depth near the mouth of Plum Island Sound, Massachusetts
Year 2017, 15 minute measurements of water column temperature, salinity, oxygen and depth in Plum Island Sound at the Ipswich Bay Yacht Club, Ipswich, MA.
Water Quality of Virginia Coastal Bays - physical data 1992-2008
This dataset has been superceded by: VCR15243 Water Quality Sampling - integrated measurements for the Virginia Coast, 1992- Please see that dataset for updated data.
Anacostia Watershed Study: Base Cations, Inorganic Carbon, and Water Quality
<p>Campus Creek and Paint Branch Creek are two urban streams in the Anacostia River watershed. Both sampling sites for these two streams are located on the campus of the University of Maryland, College Park. Please see Kaushal 2019 for further site descriptions. Data on following pages is for water quality that has been published in Kaushal et al. 2017, Haq et al. 2018, Kaushal et al. 2018, Kaushal et al. 2019.</p>
Data Sets: An Assessment of Water Trusts: Drinking Water Quality and Provision in Six Low-income, Peri-urban Communities of Lusaka, Zambia
<p>Data set associated with the manuscript published in GeoHealth titled An Assessment of Water Trusts: Drinking Water Quality and Provision in Six Low-income, Peri-urban Communities of Lusaka, Zambia. This includes bacterial, nitrate, specific conductance, and Water Trust survey data collected from Lusaka, Zambia in 2013, 2014, 2016, an 2019.</p>
Littoral macroinvertebrate and water quality data for 32 lakes across the boreal-tundra transition in the Northwest Territories
<p>This dataset includes macroinvertebrate and water quality data from 32 lakes sampled in the Northwest Territories, Canada, from the Dempster and Inuvik-Tuktoyaktuk Highways during July and August of 2017 and 2018. It was collected as part of a project to determine how physicochemical variables affect macroinvertebrate and fish communities in small Arctic lakes.</p>
Changes in arthropod community but not plant quality benefit a specialist herbivore on plants under reduced water availability
<p>Plants growing under reduced water availability can affect insect herbivores differently, in some instances benefitting them. However, the forces mediating these positive impacts remain mostly unclear. To identify how water availability impacts plant quality and multitrophic interactions, we conducted manipulative field studies with two populations of the specialist herbivore <i>Pieris rapae</i>, and its host plant, <i>Rorippa indica</i>. We found that <i>P. rapae </i>larvae experienced higher survival on <i>R. indica</i> growing under low water availability compared with plants grown under high water availability. Higher survival of eggs and larvae was related to the reduced abundance of other herbivores and natural enemies. Water availability had differential impacts on other members of the herbivore community by altering plant quality. Low water availability decreased the quality of <i>R. indica</i> to most herbivores, as indicated by reduced abundance in the field and decreased relative growth rate in laboratory feeding assays. In contrast, <i>P. rapae </i>larval performance was not affected by sympatric <i>R. indica </i>grown under different water availability. These results indicate that local <i>P. rapae</i> populations possess physiological adaptations to overcome fluctuations in host quality. Our findings illustrate that reduced water availability is beneficial to a specialist herbivore but detrimental to most other herbivores. Our work highlights the complex effects of the arthropod communities associated with plants in determining the impacts of water availability on insect herbivores.</p>
Water quality data sets of the Gozyo catchment and the four U.S. watersheds
<p>This zipped file contains three excel files. Table GZ_Solute.xls and Table GZ_Tb.xls are high-frequency water quality data in the stream of the small forested catchment, Gozyo cattchment (12.14ha), Nara, Japan. The high-frequency on-site Water quality (WQ) measurements of K, Cl, and Na in the stream using flow-injection potentiometry method with 15-minute interval were interpolated to 10-minute interval data. The SS concentration in the stream was estimated by linear transformation from the observed 10-minute turbidity value. Table GZ_Solute.xls gives observed 10-minute solutes data with discharge, rainfall, and temperature from 2009 to 2011, and Table GZ_Tb.xls provides the observed 10-minute turbidity data from 2012 to 2014. SS value (mg/l) is calculated as 1.09 Turbidity + 6.19. The data value of -999 means missing observation.</p> <p>Tables US_daily_WQ_datasets.xls contains daily water quality (WQ) and discharge data from the four watersheds in the United States. The data value of -999 also means missing observation. The names (USGS station numbers) of four WQ monitoring sites are Muskingum River (03150000), Rock Creek (04197170), Skunk River (05474000), and Vermilion River (04195000). Daily WQ data were composed by following the procedure described in the Appendix S1 in Hirsch (2014). The WQ data for Muskingum, Rock, and Vermilion river were retrieved from Heidelberg University's National Center for Water Quality Research site (https://ncwqr.org/monitoring/data) and suspended sediment discharge data were downloaded from the USGS National Water Information System (<a href="http://waterdata.usgs.gov/nwis/">http://waterdata.usgs.gov/nwis/</a> or https://doi.org/: 10.5066/F7P55KJN). All the daily discharge data were acquired via the USGS National Water Information System.</p> <p>These data were used to evaluate the performance of the unbiased load estimates and confidence intervals of river loads based on the Rating curve method using importance sampling in the listed article below. To maintain the traceability of the proposed load estimation method and replicability the results in the article, the authors of the article upload the data used in this repository.</p> <p> </p> <p>References</p> <p>Hirsch, R. M. (2014). Large biases in regression-based constituent flux estimates: causes and diagnostic tools. <em>Journal of the American Water Resources Association</em>, 50(6), 1401-1424. https://doi.org/10.1111/jawr.12195</p> <p>Tada, A. and H. Tanakamaru. (Submitted) Unbiased estimates and confidence intervals for riverine loads, <em>Water Resources Research</em>.</p>
Zooplankton and water quality data for 37 lakes in the Gwich'in and Inuvialuit regions of the Northwest Territories
<p>This dataset includes zooplankton and water quality data from 37 lakes sampled in the Northwest Territories, Canada, from the Dempster and Inuvik-Tuktoyaktuk Highways during July and August of 2017 and 2018. It was collected as part of a project to determine how physicochemical variables affect zooplankton and fish communities in small Arctic lakes.</p>
Dataset for 'Water, Sanitation and Hygiene Infrastructure and Quality in Rural Healthcare Facilities in Rwanda'
<p>Dataset for 'Water, Sanitation and Hygiene Infrastructure and Quality in Rural Healthcare Facilities in Rwanda' BMC Public Health addressing: (i) general water and power characteristics of 17 rural healthcare facilities in Rwanda, assessments conducted in 2011 and 2012; (ii) functionality of water access points in 10 rural healthcare facilities in Rwanda, 2012, (iii) availability of soap and water for hand washing in 10 rural healthcare facilities in Rwanda, 2012, (iv) state of toilets and latrines in 10 rural healthcare facilities in Rwanda, 2012, (v) Total Coliform concentration (MPN/100 mL) in tap water samples and treated drinking water samples from rural health centers in Rwanda collected during rapid assessment in 2011 and baseline assessment in 2012, (vi) <em>E. coli</em> concentration (MPN/100 mL) in tap water samples and treated drinking water samples from rural health centers in Rwanda collected during rapid assessment in 2011 and baseline assessment in 2012, (vii) free chlorine residual (mg/L) in tap water samples and treated drinking water samples from rural healthcare facilities in Rwanda collected during rapid assessment in 2011 and baseline assessment in 2012.</p>
Consumer value data for water quality improvement depending on the gap between perceived and expected condition
<p>This CSV file provides data from a survey of consumers about the gap between current and expected tap water quality. The WTP analysis of consumers' expectations for improved tap water quality was estimated with the R program. The R program is available at https://www.r-project.org.</p>
Global Airborne Observatory: Example Rapid Water Quality Maps of Hawaiian Island Coastline
<p>Example maps from the publication:</p> <p>Nicholas R. Vaughn, Marcel König, Kelly L. Hondula, Dominica E. Harrison and Gregory P. Asner. 2024. Rapid Water Quality Mapping from Imaging Spectroscopy with a Superpixel Approach to Bio-Optical Inversion. <em>Remote Sensing</em>. (in press)</p> <h2>Data:</h2> <p>Maps of water quality and auxiliary information produced from Global Airborne Observatory (GAO) VSWIR Spectrometer data for five example sites:</p> <table> <tbody> <tr> <td>Site</td> <td>Island</td> <td>Date Collected</td> <td>Time Collected (24hr)</td> <td>Latitude</td> <td>Longitude</td> </tr> <tr> <td>1. Pelekane Bay</td> <td>Hawaiʻi</td> <td>30 October 2023</td> <td>10:02</td> <td>20.0243</td> <td>−155.8256</td> </tr> <tr> <td>2. East Kaho’olawe</td> <td>Kaho’olawe</td> <td>22 January 2024</td> <td>09:15</td> <td>20.6027</td> <td>−156.5638</td> </tr> <tr> <td>3. Hilo Bay</td> <td>Hawaiʻi</td> <td>15 January 2023</td> <td>11:30</td> <td>19.7353</td> <td>−155.0636</td> </tr> <tr> <td>4. Mā’alaea Bay</td> <td>Maui</td> <td>22 January 2024</td> <td>10:19</td> <td>20.7805</td> <td>−156.4842</td> </tr> <tr> <td>5. South Moloka’i</td> <td>Moloka’i</td> <td>7 January 2024</td> <td>11:31</td> <td>21.0866</td> <td>−157.2159</td> </tr> </tbody> </table> <div> <div> <div> <p>There are 41 maps for each example site:</p> <ol> <li>A single 3-band true-color map of the example site for reference (Site<<em>X_Name></em>_3band.tif)</li> <li>A single full-resolution water quality map produced using a bio-optical inversion model on each pixel (Site<<em>X_Name></em>_PixelbyPixel.tif)</li> <li>For each of 13 different superpixel size settings (50px, 100px, 250px, 500px, 600px, 750px, 1000px, 1250px, 1500px, 2000px, 3000px, 4000px, 5000px), a map of the superpixel ID of each pixel (Site<X_Name>_Size<####>_ClusterID.tif)</li> <li>For each of 13 different superpixel size settings, a superpixel-level map of water quality as estimated at the cluster level. (i.e., each pixel in a superpixel will have the same values, Site<X_Name>_Size<####>_Cluster_Preds.tif)</li> <li>For each of 13 different superpixel size settings, a full-resolution water quality map produced by interpolation of the superpixel level maps in 4. above (Site<X_Name>_Size<####>.tif)</li> </ol> <p>All files are in GeoTiff format using 32-bit floating point values. Most are compressed with the LZW algorithm. Maps are not georeferenced. No data value for map types 2-5 is -9999.</p> </div> </div> </div>
Monthly city-level water quality data of China from 2014 to 2020.
Open the record for dataset details and reuse information.
Global Water Quality Data: Historical Nitrogen and Phosphorus Loads and Concentrations Simulated by CoSWAT-WQ v1.0
<p>Output data on global TN and TP water quality and scripts for the historical period (1995 - 2016) generated by CoSWAT-WQ v1.0. Please check the readme file for data description. The data includes river flow, , nitrogen and Phosphorus loads and concetrations at monthly timestep.</p>
Coupling nitrogen removal and watershed management to improve global lake water quality
<p>Updated dataset and code for the article "Coupling nitrogen removal and watershed management to improve global lake water quality" after removing deep lakes.</p>
Coastal squeeze on temperate reefs: long-term shifts in salinity, water quality, and oyster-associated communities
<p>Foundation species such as mangroves, saltmarshes, kelps, seagrasses, and oysters thrive within suitable environmental envelopes as narrow ribbons along the land-sea margin. Therefore, these habitat-forming species and resident fauna are sensitive to modified environmental gradients. For oysters, many estuaries impacted by sea-level rise, channelization, and municipal infrastructure are experiencing saltwater intrusion and water-quality degradation that may alter reef distributions, functions, and services. To explore decadal-scale oyster-reef community patterns across a temperate estuary in response to environmental change, we resampled reefs in the Newport River Estuary (NRE) during 2013-2015 that were previously studied during 1955-1956. We also coalesced historical NRE reef distribution (1880s-2015), salinity (1913-2015), and water-quality driven shellfish closure boundary (1970s-2015) data to document environmental trends that could influence reef ecology and service delivery. Over the last 60-120 years, the entire NRE has shifted toward higher salinities. Consequently, oyster-reef communities have become less distinct across the estuary, manifest by 20-27% lower species turnover and decreased faunal richness among NRE reefs in the 2010s relative to the 1950s. During the 2010s, NRE oyster-reef communities tended to cluster around a euhaline, intertidal-reef type more so than during the 1950s. This followed from faunal expansions farther up-estuary and biological degradation of subtidal reefs as NRE conditions became more marine and favorable for aggressive, reef-destroying taxa. In addition to these biological shifts, the area of suitable bottom on which subtidal-reefs persist (ultimately regulated by up-estuary intrusion of marine waters) and support human harvest (driven by water quality, eroding from up-estuary) has decreased by >75% since the natural history of NRE reefs was first explored. This "coastal squeeze" on harvestable subtidal oysters (reduced from a 4.5-km to a 0.75-km envelope along the NRE's main axis) will likely have consequences regarding the economic incentives for future oyster conservation, as well as the suite of services delivered by remaining shellfish reefs (e.g., biodiversity maintenance, seafood supply). More broadly, these findings exemplify how "squeeze" may be a pervasive concern for biogenic habitats along terrestrial or marine ecotones during an era of intense global change.</p>
Microbiome of domestic water from rural communities in the southern caribbean: water quality and human health implications
<p><strong>LIST OF SUPPLEMENTARY DATA FILES</strong></p> <p>Chapter 4 - The microbiome of domestic water in the rainwater harvesting-dependent island community of Carriacou, Grenada in the Southern Caribbean</p> <p>Chapter 5 - Microbial composition of drinking water in Speightstown, Barbados</p> <p>Chapter 6 - Bacterial diversity of drinking water in Nariva, Trinidad</p> <p>Chapter 7 - A preliminary assessment of protozoans in various water sources in Nariva, Trinidad</p>
NIOO-QingZ/Geertruidenberg_Mesocosms: Towards climate-robust water quality management: testing the efficacy of different eutrophication control measures during a heat
<p>Data and Codes used in the following open-access publication: </p> <p>https://www.sciencedirect.com/science/article/pii/S0048969722015145</p>
Training course materials: Introduction to Remote Sensing of Water Quality in Lakes
<p>Dataset including ESA Sentinel-2 MSI and Sentinel-3 OLCI L1B scenes (L1B), atmospherically corrected reflectance products (C2RCC), image subsets, and intermediate water quality products from the Copernicus Land Service and ESA Lakes_cci processing chain <em>Calimnos. </em>Data are in support of a recorded course introducing the theoretical and practical basis for water quality observation of lakes through remote sensing. See https://monocle-h2020.eu/Resources/Training</p> <p>The data package contains the following:</p> <p><strong>input_data.zip </strong>- unprocessed (L1B / L1C) satellite scenes of MSI and OLCI instruments over the Razelm/Sinoe lagoon and Black Sea</p> <p><strong>Output_S3_OLCI.zip - </strong>all outputs derived from the Sentinel-3 OLCI scene, including C2RCC and <em>Calimnos </em>(including POLYMER atmospheric correction and biogeochemical estimates as in the Lakes_cci)</p> <p><strong>Output_S2_MSI_Full_Scene_C2RCC.zip</strong> - atmospherically corrected (C2RCC algorithm) full Sentinel-2 MSI scene</p> <p><strong>Output_S2_MSI_Subset_C2RCC.zip </strong>- subset of Sentinel-2 MSI scene and atmospherically corrected results (C2RCC algorithm) </p> <p><strong>Output_S2_MSI_Calimnos_PML.zip </strong>- subset of Sentinel-2 MSI scene atmospherically corrected using POLYMER and biogeochemical estimates, using <em>Calimnos </em>as in the Copernicus Land Service. </p>
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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.