cl_maintenanceAndUpdateFrequency

RI_539

394 record(s)
 
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    Part of the Nova Scotia Topographic Database (NSTDB), the landforms theme layer is updated and maintained from aerial photography. Contours, spot elevations, Cut/fill locations along roadways, as well as cliffs and embankments are collected. Landform feature codes and their descriptions are provided with the download in a NSTDB feature code table. Data download also available via GeoNova: https://nsgi.novascotia.ca/WSF_DDS/DDS.svc/DownloadFile?tkey=fhrTtdnDvfytwLz6&id=14 Map service view also available via GeoNova: https://nsgiwa.novascotia.ca/arcgis/rest/services/BASE/BASE_NSTDB_10k_Landforms_UT83/MapServer?f=jsapi

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    Part of the Nova Scotia Topographic Database (NSTDB), DTM is a vector data set of spot elevations collected from aerial photography. An elevation point is collected at ground level approximately every eighty meters in an irregular grid pattern. These spot elevations, or mass points, can be used to create profiles of the ground or Digital Elevation Models (DEM). Data download also available via GeoNova: https://nsgi.novascotia.ca/WSF_DDS/DDS.svc/DownloadFile?tkey=fhrTtdnDvfytwLz6&id=37 Map Service view also available via GeoNova: https://nsgiwa.novascotia.ca/arcgis/rest/services/BASE/BASE_NSTDB_10k_DTM_UT83/MapServer?f=jsapi

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    __The link: *Access the data directory* is available in the section*Dataset Description Sheets; Additional Information*__. The updated ecoforest map (formerly “with disturbances”) is the result of the interpretation of aerial photographs and control points in the field as part of the ecoforest inventory of southern Quebec. This mapping presents the various forest and ecological characteristics of the forest territory and corresponds to the portrait of the forest up to the year in which the aerial photograph was taken (mapping cycle of about 10 years). Next, the outlines and nature of recent disturbances (forest interventions, fires and other disturbances) are then integrated annually. The fifth mapping cycle has been under way since 2015. This map covers almost all of the territory south of the 52nd parallel of Quebec's public and private forest. It is distributed by map sheet at a scale of 1/250,000. The minimum mapping area is 4 ha for stands and 0.1 ha for disturbances. __Note 1__: The disturbance maps used to update the updated ecoforest map are also distributed separately on Data Quebec. Here is the list of these maps: + [Forest fires] (https://www.donneesquebec.ca/recherche/dataset/feux-de-foret) + [Harvesting and other silvicultural interventions] (https://www.donneesquebec.ca/recherche/dataset/recolte-et-reboisement) + [Epidemics, windfalls and ice storms] (https://www.donneesquebec.ca/recherche/dataset/epidemies-chablis-et-verglas) + [Forest infrastructures] (https://www.donneesquebec.ca/recherche/dataset/infrastructures-en-milieu-forestier) () __Note 2__: Disturbances are prioritized according to the nature of the layer and respect for the chronology of events. Only the last original or partial disturbance is kept in the updated ecoforest map. You should refer to the annual update layers, listed in __Note 1__, to have access to the full history of disturbances.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

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    Every year, since 1967, the Ministère des Forêts, de la Faune et des Parcs (MFFP) has been conducting an aerial survey of damage caused by the main insects and diseases that attack trees. This fact sheet focuses exclusively on data on damage caused by spruce budworm (TBE). The aerial survey is carried out in sectors previously determined according to the damage of the previous year and the results of inventories to predict the populations of this insect. From 2013 to 2022, the DPF acquired aerial survey videos to obtain additional observer data. Since 2023, high-resolution geotagged images have replaced videos.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

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    Dataset provides location information on approved CAEC testing locations in Nova Scotia by providing the campus, street address, city/town and geographic co-ordinates of testing sites if narrative of the content of the dataset (dates should not be part of the description).

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    The goal of this carbon cycle study is to: * better understand wetland carbon uptake and losses to the atmosphere across watersheds * evaluate wetland carbon’s usefulness as a natural climate solution __Study sites__ Study sites for this project are: * Big Creek Watershed in Southern Ontario * White River in the experimental forest area in Northern Ontario We chose these sites to represent relatively data-scarce regions of Ontario, and locations that represent: * recently restored wetland * an undisturbed wetland These locations can show how wetlands can act as natural climate solutions. __Wetlands and climate change__ Wetlands absorb and release atmospheric carbon as plants grow and decompose. If wetlands absorb more carbon than they release, they can act as natural climate solutions. Wetland restoration and wetland preservation: * promotes carbon uptake by wetlands in Ontario * slows future climate warming Wetland carbon exchange with the atmosphere varies immensely across space and time. These continuous measurements are used to: * calculate the amount of carbon moving between the air, plants and soils of wetlands * improve numerical models that will help us predict how wetland carbon exchanges might respond to climate warming at these locations and other locations __Download the study data__ We submit this data to Ameriflux, which is a network of sites measuring ecosystem CO2, water and energy fluxes in North, Central and South America. You can download the data from [Ameriflux](https://ameriflux.lbl.gov/).

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    Data set provides the user with the name and civic address location of all Public Work's Salt Storage Facilities

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    __The link: * Access the data directory* is available in the section*Dataset description sheets; Additional information*__. Hydrographic derivatives from LiDAR (Light Detection and Ranging) were produced as part of the provincial LiDAR sensor data acquisition project. These products provide information on the geographical position of water flow beds on the territory as well as their nature (permanent or intermittent watercourse). These layers represent the path that water should take depending on the topography. It is therefore a potential flow bed that does not take into account the nature of the surface deposit or underground pipes. These vector layers are preliminary and do not replace reference hydrographic layers such as the Quebec Hydrographic Network Geobase (GRHQ). They are primarily used to support forest operations. These layers will also be improved over the coming years thanks to a collective effort by two ministries, namely the Ministry of Natural Resources and Forests (MRNF) and the Ministry of the Environment, the Fight against Climate Change, and Wildlife and Parks (MELCCFP). Data on potential flow beds are distributed, as of March 2022, by water drainage unit (UDH), a division that respects the natural boundaries of the watershed. This division uses the same codes and approximately the same spatial limits of the UDHs of the GRHQ. Data for each UDH is available in Geodatabase (GDB) or GeoPackage (GPKG) format.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

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    Bottom salinity time series at the 3 fixed stations and 46 stations, grouped into transects, of the Atlantic Zonal Monitoring Program (AZMP) under the Quebec region responsibility. The mean bottom salinity of the last ten years are displayed as 2 layers, one for the June survey (2014-2023, 2020 not sampled), another for the autumn survey (2014-2023). A third layer shows the positions of the fixed stations of the program (Anticosti Gyre, Gaspé Current and Rimouski). Each station is linked with a .png file showing the bottom salinity time series and with a .csv file containing all the bottom salinity data acquired at those stations since the beginning of the program sampling (columns : Station, Latitude, Longitude, Date(UTC), Sounding(m), Depth/Profondeur(m), Salinity/Salinité). Purpose The Atlantic Zone Monitoring Program (AZMP) was implemented in 1998 with the aim of increasing the Department of Fisheries and Oceans Canada’s (DFO) capacity to detect, track and predict changes in the state and productivity of the marine environment. The AZMP collects data from a network of stations composed of high-frequency monitoring sites and cross-shelf sections in each following DFO region: Québec, Gulf, Maritimes and Newfoundland. The sampling design provides basic information on the natural variability in physical, chemical, and biological properties of the Northwest Atlantic continental shelf. Cross-shelf sections sampling provides detailed geographic information but is limited in a seasonal coverage while critically placed high-frequency monitoring sites complement the geography-based sampling by providing more detailed information on temporal changes in ecosystem properties. In Quebec region, two surveys (46 stations grouped into transects) are conducted every year, one in June and the other in autumn in the Estuary and Gulf of St. Lawrence. Historically, 3 fixed stations were sampled more frequently. One of these is the Rimouski station that still takes part of the program and is sampled about weekly throughout the summer and occasionally in the winter period. Annual reports (physical, biological and a Zonal Scientific Advice) are available from the Canadian Science Advisory Secretariat (CSAS), (http://www.dfo-mpo.gc.ca/csas-sccs/index-eng.htm). Devine, L., Scarratt, M., Plourde, S., Galbraith, P.S., Michaud, S., and Lehoux, C. 2017. Chemical and Biological Oceanographic Conditions in the Estuary and Gulf of St. Lawrence during 2015. DFO Can. Sci. Advis. Sec. Res. Doc. 2017/034. v + 48 pp. Supplemental Information The bottom salinity is determined from CTD profile in the water column according to AZMP sampling protocol: Mitchell, M. R., Harrison, G., Pauley, K., Gagné, A., Maillet, G., and Strain, P. 2002. Atlantic Zonal Monitoring Program sampling protocol. Can. Tech. Rep. Hydrogr. Ocean Sci. 223: iv + 23 pp.

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    The Grain Elevators in Canada – 2017 dataset maps the list of grain elevators in Canada as provided by the Canadian Grain Commission (CGC). The elevators have been located as much as possible to an actual location rather than generalizing to the station name centroid. Additionally car spot information from CN, CP and the grain companies has been added where this has been published. This dataset attempts to provide a temporal and geographical extent of the grain elevators in Canada.