{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:00.147729", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2012-Jul-07_to_2012-Jul-15_277.5_63.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2012070002008}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 07 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 15 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 69020.0337661004}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Hudson Bay"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 63.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 277.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "277.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 271.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.03, 63.47], [-89.25, 64.0], [-89.03, 64.53], [-88.5, 64.75], [-88.25, 64.65], [-88.0, 64.75], [-87.75, 64.65], [-87.68, 64.68], [-87.53, 65.03], [-87.0, 65.25], [-86.47, 65.03], [-86.32, 64.68], [-85.97, 64.53], [-85.82, 64.18], [-85.75, 64.15], [-85.5, 64.25], [-85.25, 64.15], [-85.0, 64.25], [-84.47, 64.03], [-84.25, 63.5], [-84.47, 62.97], [-84.82, 62.82], [-84.97, 62.47], [-85.5, 62.25], [-85.75, 62.35], [-86.0, 62.25], [-86.25, 62.35], [-86.5, 62.25], [-86.75, 62.35], [-87.0, 62.25], [-87.53, 62.47], [-87.68, 62.82], [-88.03, 62.97], [-88.18, 63.32], [-88.25, 63.35], [-88.5, 63.25], [-89.03, 63.47]]]]}, "2012-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.03, 63.47], [-89.25, 64.0], [-89.03, 64.53], [-88.5, 64.75], [-88.25, 64.65], [-88.0, 64.75], [-87.75, 64.65], [-87.68, 64.68], [-87.53, 65.03], [-87.0, 65.25], [-86.47, 65.03], [-86.32, 64.68], [-85.97, 64.53], [-85.82, 64.18], [-85.75, 64.15], [-85.5, 64.25], [-85.25, 64.15], [-85.0, 64.25], [-84.5, 64.04], [-84.18, 64.18], [-84.03, 64.53], [-83.5, 64.75], [-83.25, 64.65], [-83.0, 64.75], [-82.47, 64.53], [-82.32, 64.18], [-81.97, 64.03], [-81.75, 63.5], [-81.97, 62.97], [-82.5, 62.75], [-83.0, 62.96], [-83.5, 62.75], [-83.25, 62.65], [-83.0, 62.75], [-82.47, 62.53], [-82.25, 62.0], [-82.47, 61.47], [-83.0, 61.25], [-83.25, 61.35], [-83.5, 61.25], [-83.75, 61.35], [-83.82, 61.32], [-83.97, 60.97], [-84.5, 60.75], [-84.75, 60.85], [-85.0, 60.75], [-85.25, 60.85], [-85.5, 60.75], [-85.75, 60.85], [-86.0, 60.75], [-86.53, 60.97], [-86.68, 61.32], [-87.03, 61.47], [-87.18, 61.82], [-87.53, 61.97], [-87.75, 62.5], [-87.65, 62.75], [-87.68, 62.82], [-88.03, 62.97], [-88.18, 63.32], [-88.25, 63.35], [-88.5, 63.25], [-89.03, 63.47]], [[-83.75, 62.85], [-83.82, 62.82], [-83.87, 62.7], [-83.75, 62.65], [-83.5, 62.75], [-83.75, 62.85]]]]}, "2012-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.03, 63.47], [-89.25, 64.0], [-89.03, 64.53], [-88.5, 64.75], [-88.25, 64.65], [-88.0, 64.75], [-87.75, 64.65], [-87.68, 64.68], [-87.53, 65.03], [-87.0, 65.25], [-86.47, 65.03], [-86.32, 64.68], [-85.97, 64.53], [-85.82, 64.18], [-85.75, 64.15], [-85.5, 64.25], [-85.25, 64.15], [-85.0, 64.25], [-84.5, 64.04], [-84.18, 64.18], [-84.03, 64.53], [-83.5, 64.75], [-83.25, 64.65], [-83.0, 64.75], [-82.47, 64.53], [-82.32, 64.18], [-82.25, 64.15], [-82.0, 64.25], [-81.47, 64.03], [-81.32, 63.68], [-81.25, 63.65], [-81.0, 63.75], [-80.47, 63.53], [-80.25, 63.0], [-80.47, 62.47], [-80.82, 62.32], [-80.97, 61.97], [-81.32, 61.82], [-81.47, 61.47], [-82.0, 61.25], [-82.25, 61.35], [-82.5, 61.25], [-82.75, 61.35], [-83.0, 61.25], [-83.25, 61.35], [-83.5, 61.25], [-83.75, 61.35], [-83.82, 61.32], [-83.97, 60.97], [-84.5, 60.75], [-84.75, 60.85], [-85.0, 60.75], [-85.25, 60.85], [-85.5, 60.75], [-85.75, 60.85], [-86.0, 60.75], [-86.53, 60.97], [-86.68, 61.32], [-87.03, 61.47], [-87.18, 61.82], [-87.53, 61.97], [-87.75, 62.5], [-87.65, 62.75], [-87.68, 62.82], [-88.03, 62.97], [-88.18, 63.32], [-88.25, 63.35], [-88.5, 63.25], [-89.03, 63.47]], [[-82.68, 62.68], [-82.62, 62.8], [-82.75, 62.85], [-82.82, 62.82], [-82.87, 62.7], [-82.75, 62.65], [-82.68, 62.68]]]]}, "2012-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 63.5], [-88.03, 64.03], [-87.68, 64.18], [-87.65, 64.25], [-87.75, 64.5], [-87.53, 65.03], [-87.0, 65.25], [-86.47, 65.03], [-86.25, 64.5], [-86.35, 64.25], [-86.32, 64.18], [-86.25, 64.15], [-86.0, 64.25], [-85.75, 64.15], [-85.5, 64.25], [-84.97, 64.03], [-84.82, 63.68], [-84.75, 63.65], [-84.68, 63.68], [-84.53, 64.03], [-84.18, 64.18], [-84.03, 64.53], [-83.5, 64.75], [-83.25, 64.65], [-83.0, 64.75], [-82.47, 64.53], [-82.32, 64.18], [-82.25, 64.15], [-82.0, 64.25], [-81.47, 64.03], [-81.32, 63.68], [-81.25, 63.65], [-81.0, 63.75], [-80.47, 63.53], [-80.25, 63.0], [-80.47, 62.47], [-80.82, 62.32], [-80.97, 61.97], [-81.32, 61.82], [-81.47, 61.47], [-82.0, 61.25], [-82.25, 61.35], [-82.5, 61.25], [-82.75, 61.35], [-83.0, 61.25], [-83.25, 61.35], [-83.5, 61.25], [-83.75, 61.35], [-83.82, 61.32], [-83.97, 60.97], [-84.5, 60.75], [-84.75, 60.85], [-85.0, 60.75], [-85.25, 60.85], [-85.5, 60.75], [-85.75, 60.85], [-86.0, 60.75], [-86.53, 60.97], [-86.68, 61.32], [-87.03, 61.47], [-87.18, 61.82], [-87.53, 61.97], [-87.75, 62.5], [-87.65, 62.75], [-87.68, 62.82], [-88.03, 62.97], [-88.25, 63.5]], [[-82.68, 62.68], [-82.62, 62.8], [-82.75, 62.85], [-82.82, 62.82], [-82.87, 62.7], [-82.75, 62.65], [-82.68, 62.68]]]]}, "2012-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.18, 64.18], [-84.03, 64.53], [-83.5, 64.75], [-83.25, 64.65], [-83.0, 64.75], [-82.47, 64.53], [-82.32, 64.18], [-82.25, 64.15], [-82.0, 64.25], [-81.47, 64.03], [-81.32, 63.68], [-81.25, 63.65], [-81.0, 63.75], [-80.47, 63.53], [-80.25, 63.0], [-80.47, 62.47], [-80.82, 62.32], [-80.97, 61.97], [-81.32, 61.82], [-81.47, 61.47], [-82.0, 61.25], [-82.25, 61.35], [-82.5, 61.25], [-82.75, 61.35], [-83.0, 61.25], [-83.53, 61.47], [-83.75, 62.0], [-83.62, 62.3], [-84.0, 62.46], [-84.5, 62.25], [-85.03, 62.47], [-85.25, 63.0], [-85.03, 63.53], [-84.68, 63.68], [-84.53, 64.03], [-84.18, 64.18]], [[-82.75, 62.85], [-82.82, 62.82], [-82.87, 62.7], [-82.75, 62.65], [-82.68, 62.68], [-82.62, 62.8], [-82.75, 62.85]]]]}, "2012-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.53, 62.97], [-84.75, 63.5], [-84.53, 64.03], [-84.0, 64.25], [-83.75, 64.15], [-83.68, 64.18], [-83.53, 64.53], [-83.0, 64.75], [-82.47, 64.53], [-82.32, 64.18], [-81.97, 64.03], [-81.75, 63.5], [-81.87, 63.2], [-81.47, 63.03], [-81.25, 62.5], [-81.47, 61.97], [-82.0, 61.75], [-82.53, 61.97], [-82.75, 62.5], [-82.62, 62.8], [-82.75, 62.85], [-83.0, 62.75], [-83.25, 62.85], [-83.5, 62.75], [-83.75, 62.85], [-84.0, 62.75], [-84.53, 62.97]]]]}, "2012-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.5, 64.25], [-81.97, 64.03], [-81.75, 63.5], [-81.97, 62.97], [-82.5, 62.75], [-83.03, 62.97], [-83.25, 63.5], [-83.03, 64.03], [-82.5, 64.25]]]]}, "2012-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.5, 64.25], [-81.97, 64.03], [-81.75, 63.5], [-81.97, 62.97], [-82.5, 62.75], [-83.03, 62.97], [-83.25, 63.5], [-83.03, 64.03], [-82.5, 64.25]]]]}, "2012-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.5, 64.25], [-81.97, 64.03], [-81.75, 63.5], [-81.97, 62.97], [-82.5, 62.75], [-83.03, 62.97], [-83.25, 63.5], [-83.03, 64.03], [-82.5, 64.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.373799904711689}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.0608097555416016}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.004962002397633, 8.322870369980535, 8.615354441494787, 8.369128945911541, 8.4470797285137, 8.445090644139384, 7.531268730299587, 7.948433487412956, 7.707827027869257]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.784325227742386, 13.34815346214208, 13.324987105683363, 10.559588473851875, 10.607624595332425, 9.310564144928719, 7.531268730299587, 7.948433487412956, 7.707827027869257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.721546644455966, 2.9218808544013215, 3.2367597987645635, 3.1236207346617677, 3.149081962522633, 2.852914853985245, 2.7186165443466734, 3.0928410835560953, 2.806116360132762]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.347953280936565, 3.8275587774973587, 4.279903256697423, 4.373799904711689, 3.719210970713789, 3.0338607411418934, 2.7186165443466734, 3.0928410835560953, 2.806116360132762]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4678278876962936, 1.5758397092415712, 1.7550697982379868, 1.6960722457735065, 1.6863433943811876, 1.454306610809699, 1.3973775898258443, 1.57987091459689, 1.4269211873506602]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6917986206739533, 2.247717613975286, 2.31175391143255, 2.182767574738353, 1.9662158085613877, 1.5222665575040808, 1.3973775898258443, 1.57987091459689, 1.4269211873506602]}}