{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:14.125003", "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": "2020-Aug-17_to_2020-Aug-19_248.5_55.5"}, "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": 2020080002272}, "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": "August 17 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 19 2020"}, "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": 56155.5644820369}, "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": 55.5}, "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": 248.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "248.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 251.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.03], [-113.18, 56.18], [-113.15, 56.25], [-113.25, 56.5], [-113.03, 57.03], [-112.5, 57.25], [-112.25, 57.15], [-112.0, 57.25], [-111.75, 57.15], [-111.5, 57.25], [-111.25, 57.15], [-111.0, 57.25], [-110.47, 57.03], [-110.32, 56.68], [-110.25, 56.65], [-110.0, 56.75], [-109.47, 56.53], [-109.32, 56.18], [-108.97, 56.03], [-108.82, 55.68], [-108.75, 55.65], [-108.5, 55.75], [-107.97, 55.53], [-107.75, 55.0], [-107.97, 54.47], [-108.32, 54.32], [-108.47, 53.97], [-109.0, 53.75], [-109.25, 53.85], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.25, 54.35], [-110.5, 54.25], [-110.75, 54.35], [-111.0, 54.25], [-111.25, 54.35], [-111.32, 54.32], [-111.47, 53.97], [-112.0, 53.75], [-112.25, 53.85], [-112.5, 53.75], [-112.75, 53.85], [-113.0, 53.75], [-113.25, 53.85], [-113.5, 53.75], [-114.03, 53.97], [-114.25, 54.5], [-114.03, 55.03], [-113.62, 55.2], [-113.75, 55.5], [-113.53, 56.03]]]]}, "2020-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.03], [-113.18, 56.18], [-113.15, 56.25], [-113.25, 56.5], [-113.03, 57.03], [-112.5, 57.25], [-112.25, 57.15], [-112.0, 57.25], [-111.75, 57.15], [-111.5, 57.25], [-111.25, 57.15], [-111.0, 57.25], [-110.47, 57.03], [-110.32, 56.68], [-110.25, 56.65], [-110.0, 56.75], [-109.47, 56.53], [-109.32, 56.18], [-108.97, 56.03], [-108.82, 55.68], [-108.75, 55.65], [-108.5, 55.75], [-107.97, 55.53], [-107.75, 55.0], [-107.97, 54.47], [-108.32, 54.32], [-108.47, 53.97], [-109.0, 53.75], [-109.25, 53.85], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.25, 54.35], [-110.5, 54.25], [-110.75, 54.35], [-111.0, 54.25], [-111.25, 54.35], [-111.32, 54.32], [-111.47, 53.97], [-112.0, 53.75], [-112.25, 53.85], [-112.5, 53.75], [-112.75, 53.85], [-113.0, 53.75], [-113.25, 53.85], [-113.5, 53.75], [-114.03, 53.97], [-114.25, 54.5], [-114.03, 55.03], [-113.62, 55.2], [-113.75, 55.5], [-113.53, 56.03]]]]}, "2020-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.03], [-113.18, 56.18], [-113.15, 56.25], [-113.25, 56.5], [-113.03, 57.03], [-112.5, 57.25], [-112.25, 57.15], [-112.0, 57.25], [-111.75, 57.15], [-111.5, 57.25], [-111.25, 57.15], [-111.0, 57.25], [-110.47, 57.03], [-110.32, 56.68], [-110.25, 56.65], [-110.0, 56.75], [-109.47, 56.53], [-109.32, 56.18], [-108.97, 56.03], [-108.82, 55.68], [-108.75, 55.65], [-108.5, 55.75], [-107.97, 55.53], [-107.75, 55.0], [-107.97, 54.47], [-108.32, 54.32], [-108.47, 53.97], [-109.0, 53.75], [-109.25, 53.85], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.25, 54.35], [-110.5, 54.25], [-110.75, 54.35], [-111.0, 54.25], [-111.25, 54.35], [-111.32, 54.32], [-111.47, 53.97], [-112.0, 53.75], [-112.25, 53.85], [-112.5, 53.75], [-112.75, 53.85], [-113.0, 53.75], [-113.25, 53.85], [-113.5, 53.75], [-114.03, 53.97], [-114.25, 54.5], [-114.03, 55.03], [-113.62, 55.2], [-113.75, 55.5], [-113.53, 56.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.107609038162366}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.887550166523691}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.269379177054475, 22.06196738988035, 20.44746257903097]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.860572896117674, 23.060556108197716, 22.070149509295504]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.123293313343282, 7.0440975161263, 5.495259670101497]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.134857827507631, 8.107609038162366, 6.477698247511626]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5375303635043553, 2.127411011745577, 1.6650680622414253]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7915113921679977, 2.3603410636700293, 1.9476564864810824]}}