{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:07.201971", "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": "2023-Jul-26_to_2023-Jul-28_263.0_39.5"}, "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": 2023070002470}, "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 26 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2023"}, "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": 78169.70998945244}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.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": 39.5}, "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": 263.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "263.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 264.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.04, 40.5], [-100.25, 41.0], [-100.03, 41.53], [-99.68, 41.68], [-99.53, 42.03], [-99.0, 42.25], [-98.47, 42.03], [-98.32, 41.68], [-98.0, 41.54], [-97.5, 41.75], [-96.97, 41.53], [-96.82, 41.18], [-96.75, 41.15], [-96.5, 41.25], [-96.25, 41.15], [-96.0, 41.25], [-95.47, 41.03], [-95.25, 40.5], [-95.46, 40.0], [-95.25, 39.5], [-95.35, 39.25], [-95.25, 39.0], [-95.47, 38.47], [-96.0, 38.25], [-96.25, 38.35], [-96.5, 38.25], [-96.75, 38.35], [-97.0, 38.25], [-97.25, 38.35], [-97.5, 38.25], [-97.75, 38.35], [-98.0, 38.25], [-98.25, 38.35], [-98.5, 38.25], [-99.03, 38.47], [-99.18, 38.82], [-99.25, 38.85], [-99.5, 38.75], [-100.03, 38.97], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.04, 40.5]]]]}, "2023-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.04, 40.5], [-100.25, 41.0], [-100.03, 41.53], [-99.68, 41.68], [-99.53, 42.03], [-99.0, 42.25], [-98.47, 42.03], [-98.32, 41.68], [-98.0, 41.54], [-97.5, 41.75], [-96.97, 41.53], [-96.82, 41.18], [-96.75, 41.15], [-96.5, 41.25], [-96.25, 41.15], [-96.0, 41.25], [-95.47, 41.03], [-95.25, 40.5], [-95.46, 40.0], [-95.25, 39.5], [-95.35, 39.25], [-95.25, 39.0], [-95.47, 38.47], [-96.0, 38.25], [-96.25, 38.35], [-96.5, 38.25], [-96.75, 38.35], [-97.0, 38.25], [-97.25, 38.35], [-97.5, 38.25], [-97.75, 38.35], [-98.0, 38.25], [-98.25, 38.35], [-98.5, 38.25], [-99.03, 38.47], [-99.18, 38.82], [-99.25, 38.85], [-99.5, 38.75], [-100.03, 38.97], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.04, 40.5]]]]}, "2023-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.04, 40.5], [-100.25, 41.0], [-100.03, 41.53], [-99.68, 41.68], [-99.53, 42.03], [-99.0, 42.25], [-98.47, 42.03], [-98.32, 41.68], [-98.0, 41.54], [-97.5, 41.75], [-96.97, 41.53], [-96.82, 41.18], [-96.75, 41.15], [-96.5, 41.25], [-96.25, 41.15], [-96.0, 41.25], [-95.47, 41.03], [-95.25, 40.5], [-95.46, 40.0], [-95.25, 39.5], [-95.35, 39.25], [-95.25, 39.0], [-95.47, 38.47], [-96.0, 38.25], [-96.25, 38.35], [-96.5, 38.25], [-96.75, 38.35], [-97.0, 38.25], [-97.25, 38.35], [-97.5, 38.25], [-97.75, 38.35], [-98.0, 38.25], [-98.25, 38.35], [-98.5, 38.25], [-99.03, 38.47], [-99.18, 38.82], [-99.25, 38.85], [-99.5, 38.75], [-100.03, 38.97], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.04, 40.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.205538534439938}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.586411164130055}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.530944718919955, 31.074192506725126, 31.2132982802695]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.89079082661834, 32.66121000048025, 33.125847678913374]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.694165057577944, 5.38003439485525, 5.685034039956978]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.205538534439938, 6.19015640246198, 6.4986849594358205]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.66875238536344, 1.5858009022452126, 1.66333151461672]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1010774187493393, 1.7730083217250052, 1.927494577886283]}}