{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:39.359578", "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": "2024-Apr-07_to_2024-Apr-09_241.5_60.5"}, "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": 2024040001133}, "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": "April 07 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 55098.301132481785}, "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.W.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": []}, "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": 60.5}, "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": 241.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "241.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 238.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 246.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.03, 60.53], [-120.5, 60.75], [-120.25, 60.65], [-120.18, 60.68], [-120.15, 60.75], [-120.25, 61.0], [-120.03, 61.53], [-119.5, 61.75], [-119.25, 61.65], [-119.0, 61.75], [-118.75, 61.65], [-118.5, 61.75], [-118.25, 61.65], [-118.0, 61.75], [-117.5, 61.54], [-117.0, 61.75], [-116.75, 61.65], [-116.5, 61.75], [-116.25, 61.65], [-116.18, 61.68], [-116.03, 62.03], [-115.5, 62.25], [-114.97, 62.03], [-114.82, 61.68], [-114.47, 61.53], [-114.32, 61.18], [-114.25, 61.15], [-114.0, 61.25], [-113.47, 61.03], [-113.25, 60.5], [-113.47, 59.97], [-113.82, 59.82], [-113.97, 59.47], [-114.5, 59.25], [-114.75, 59.35], [-115.0, 59.25], [-115.25, 59.35], [-115.5, 59.25], [-115.75, 59.35], [-116.0, 59.25], [-116.25, 59.35], [-116.5, 59.25], [-116.75, 59.35], [-116.82, 59.32], [-116.97, 58.97], [-117.5, 58.75], [-118.03, 58.97], [-118.25, 59.5], [-118.47, 58.97], [-119.0, 58.75], [-119.25, 58.85], [-119.5, 58.75], [-119.75, 58.85], [-119.82, 58.82], [-119.97, 58.47], [-120.5, 58.25], [-120.75, 58.35], [-121.0, 58.25], [-121.53, 58.47], [-121.75, 59.0], [-121.53, 59.53], [-121.12, 59.7], [-121.25, 60.0], [-121.03, 60.53]], [[-118.12, 59.8], [-118.25, 59.85], [-118.37, 59.8], [-118.25, 59.5], [-118.12, 59.8]]]]}, "2024-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.03, 60.53], [-120.5, 60.75], [-120.25, 60.65], [-120.18, 60.68], [-120.15, 60.75], [-120.25, 61.0], [-120.03, 61.53], [-119.5, 61.75], [-119.25, 61.65], [-119.0, 61.75], [-118.75, 61.65], [-118.5, 61.75], [-118.25, 61.65], [-118.0, 61.75], [-117.5, 61.54], [-117.0, 61.75], [-116.75, 61.65], [-116.5, 61.75], [-116.25, 61.65], [-116.18, 61.68], [-116.03, 62.03], [-115.5, 62.25], [-114.97, 62.03], [-114.82, 61.68], [-114.47, 61.53], [-114.32, 61.18], [-114.25, 61.15], [-114.0, 61.25], [-113.47, 61.03], [-113.25, 60.5], [-113.47, 59.97], [-113.82, 59.82], [-113.97, 59.47], [-114.5, 59.25], [-114.75, 59.35], [-115.0, 59.25], [-115.25, 59.35], [-115.5, 59.25], [-115.75, 59.35], [-116.0, 59.25], [-116.25, 59.35], [-116.5, 59.25], [-116.75, 59.35], [-116.82, 59.32], [-116.97, 58.97], [-117.5, 58.75], [-118.03, 58.97], [-118.25, 59.5], [-118.47, 58.97], [-119.0, 58.75], [-119.25, 58.85], [-119.5, 58.75], [-119.75, 58.85], [-119.82, 58.82], [-119.97, 58.47], [-120.5, 58.25], [-120.75, 58.35], [-121.0, 58.25], [-121.53, 58.47], [-121.75, 59.0], [-121.53, 59.53], [-121.12, 59.7], [-121.25, 60.0], [-121.03, 60.53]], [[-118.12, 59.8], [-118.25, 59.85], [-118.37, 59.8], [-118.25, 59.5], [-118.12, 59.8]]]]}, "2024-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-121.03, 60.53], [-120.5, 60.75], [-120.25, 60.65], [-120.18, 60.68], [-120.15, 60.75], [-120.25, 61.0], [-120.03, 61.53], [-119.5, 61.75], [-119.25, 61.65], [-119.0, 61.75], [-118.75, 61.65], [-118.5, 61.75], [-118.25, 61.65], [-118.0, 61.75], [-117.5, 61.54], [-117.0, 61.75], [-116.75, 61.65], [-116.5, 61.75], [-116.25, 61.65], [-116.18, 61.68], [-116.03, 62.03], [-115.5, 62.25], [-114.97, 62.03], [-114.82, 61.68], [-114.47, 61.53], [-114.32, 61.18], [-114.25, 61.15], [-114.0, 61.25], [-113.47, 61.03], [-113.25, 60.5], [-113.47, 59.97], [-113.82, 59.82], [-113.97, 59.47], [-114.5, 59.25], [-114.75, 59.35], [-115.0, 59.25], [-115.25, 59.35], [-115.5, 59.25], [-115.75, 59.35], [-116.0, 59.25], [-116.25, 59.35], [-116.5, 59.25], [-116.75, 59.35], [-116.82, 59.32], [-116.97, 58.97], [-117.5, 58.75], [-118.03, 58.97], [-118.25, 59.5], [-118.47, 58.97], [-119.0, 58.75], [-119.25, 58.85], [-119.5, 58.75], [-119.75, 58.85], [-119.82, 58.82], [-119.97, 58.47], [-120.5, 58.25], [-120.75, 58.35], [-121.0, 58.25], [-121.53, 58.47], [-121.75, 59.0], [-121.53, 59.53], [-121.12, 59.7], [-121.25, 60.0], [-121.03, 60.53]], [[-118.12, 59.8], [-118.25, 59.85], [-118.37, 59.8], [-118.25, 59.5], [-118.12, 59.8]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.531454573199483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.947143967780277}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.5502673840235275, 5.114734417410659, 4.939418186883245]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.018711614341669, 6.4615033930305685, 6.368026007352739]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.00751920497678, 8.218126147932317, 7.615786550431732]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.479116286973863, 9.531454573199483, 9.478520489160303]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3646719489562391, 1.436738671801191, 1.3704395702435805]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5504833742920008, 1.5882559908090965, 1.531938496088984]}}