{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:26.232648", "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": "2022-Aug-03_to_2022-Aug-05_257.0_28.0"}, "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": 2022080001651}, "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 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2022"}, "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": 76719.30103060752}, "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": ["Mexico", "United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 28.0}, "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": 257.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 255.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 28.0], [-105.15, 28.25], [-105.25, 28.5], [-105.15, 28.75], [-105.25, 29.0], [-105.15, 29.25], [-105.25, 29.5], [-105.03, 30.03], [-104.5, 30.25], [-104.25, 30.15], [-104.0, 30.25], [-103.75, 30.15], [-103.5, 30.25], [-102.97, 30.03], [-102.75, 29.5], [-102.85, 29.25], [-102.75, 29.0], [-102.85, 28.75], [-102.82, 28.68], [-102.47, 28.53], [-102.25, 28.0], [-102.35, 27.75], [-102.25, 27.5], [-102.35, 27.25], [-102.32, 27.18], [-102.25, 27.15], [-102.0, 27.25], [-101.47, 27.03], [-101.25, 26.5], [-101.47, 25.97], [-102.0, 25.75], [-102.25, 25.85], [-102.32, 25.82], [-102.47, 25.47], [-103.0, 25.25], [-103.25, 25.35], [-103.5, 25.25], [-103.75, 25.35], [-104.0, 25.25], [-104.53, 25.47], [-104.68, 25.82], [-105.03, 25.97], [-105.25, 26.5], [-105.15, 26.75], [-105.25, 27.0], [-105.04, 27.5], [-105.25, 28.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 27.0], [-105.03999999999999, 27.5], [-105.25, 28.0], [-105.15, 28.25], [-105.25, 28.5], [-105.15, 28.75], [-105.25, 29.0], [-105.15, 29.25], [-105.25, 29.5], [-105.03, 30.03], [-104.5, 30.25], [-104.25, 30.15], [-104.0, 30.25], [-103.75, 30.15], [-103.5, 30.25], [-102.97000000000003, 30.03], [-102.75, 29.5], [-102.85000000000002, 29.25], [-102.75, 29.0], [-102.85000000000002, 28.75], [-102.82, 28.68], [-102.47000000000003, 28.53], [-102.25, 28.0], [-102.35000000000002, 27.75], [-102.25, 27.5], [-102.35000000000002, 27.25], [-102.32, 27.18], [-102.25, 27.15], [-102.0, 27.25], [-101.47000000000003, 27.03], [-101.25, 26.5], [-101.47000000000003, 25.97], [-102.0, 25.75], [-102.25, 25.85], [-102.32, 25.82], [-102.47000000000003, 25.47], [-103.0, 25.25], [-103.25, 25.35], [-103.5, 25.25], [-103.75, 25.35], [-104.0, 25.25], [-104.53, 25.47], [-104.68, 25.82], [-105.03, 25.97], [-105.25, 26.5], [-105.15, 26.75], [-105.25, 27.0]]]]}, "2022-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 27.0], [-105.03999999999999, 27.5], [-105.25, 28.0], [-105.15, 28.25], [-105.25, 28.5], [-105.15, 28.75], [-105.25, 29.0], [-105.15, 29.25], [-105.25, 29.5], [-105.03, 30.03], [-104.5, 30.25], [-104.25, 30.15], [-104.0, 30.25], [-103.75, 30.15], [-103.5, 30.25], [-102.97000000000003, 30.03], [-102.75, 29.5], [-102.85000000000002, 29.25], [-102.75, 29.0], [-102.85000000000002, 28.75], [-102.82, 28.68], [-102.47000000000003, 28.53], [-102.25, 28.0], [-102.35000000000002, 27.75], [-102.25, 27.5], [-102.35000000000002, 27.25], [-102.32, 27.18], [-102.25, 27.15], [-102.0, 27.25], [-101.47000000000003, 27.03], [-101.25, 26.5], [-101.47000000000003, 25.97], [-102.0, 25.75], [-102.25, 25.85], [-102.32, 25.82], [-102.47000000000003, 25.47], [-103.0, 25.25], [-103.25, 25.35], [-103.5, 25.25], [-103.75, 25.35], [-104.0, 25.25], [-104.53, 25.47], [-104.68, 25.82], [-105.03, 25.97], [-105.25, 26.5], [-105.15, 26.75], [-105.25, 27.0]]]]}, "2022-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 27.0], [-105.03999999999999, 27.5], [-105.25, 28.0], [-105.15, 28.25], [-105.25, 28.5], [-105.15, 28.75], [-105.25, 29.0], [-105.15, 29.25], [-105.25, 29.5], [-105.03, 30.03], [-104.5, 30.25], [-104.25, 30.15], [-104.0, 30.25], [-103.75, 30.15], [-103.5, 30.25], [-102.97000000000003, 30.03], [-102.75, 29.5], [-102.85000000000002, 29.25], [-102.75, 29.0], [-102.85000000000002, 28.75], [-102.82, 28.68], [-102.47000000000003, 28.53], [-102.25, 28.0], [-102.35000000000002, 27.75], [-102.25, 27.5], [-102.35000000000002, 27.25], [-102.32, 27.18], [-102.25, 27.15], [-102.0, 27.25], [-101.47000000000003, 27.03], [-101.25, 26.5], [-101.47000000000003, 25.97], [-102.0, 25.75], [-102.25, 25.85], [-102.32, 25.82], [-102.47000000000003, 25.47], [-103.0, 25.25], [-103.25, 25.35], [-103.5, 25.25], [-103.75, 25.35], [-104.0, 25.25], [-104.53, 25.47], [-104.68, 25.82], [-105.03, 25.97], [-105.25, 26.5], [-105.15, 26.75], [-105.25, 27.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.11646667157072}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.221587318847181}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.73089673097337, 31.22793577309227, 30.714629890269066]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.60971013135031, 33.70128862824748, 33.292232443383284]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.153077650668219, 3.566840331644676, 2.944843974228649]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.667546634619498, 4.11646667157072, 3.6809708701952104]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.486154966750409, 1.6778489358744595, 1.3507753274237613]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6961714680018782, 2.1105604463057324, 1.5443174068974086]}}