{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:35.756157", "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": "2026-May-24_to_2026-May-29_248.0_43.0"}, "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": 2026050002433}, "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": "May 24 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 29 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 108371.24616742472}, "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": ["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": 43.0}, "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": 248.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "248.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 244.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 248.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.15, 40.75], [-116.25, 41.0], [-116.03, 41.53], [-115.68, 41.68], [-115.65, 41.75], [-115.75, 42.0], [-115.54, 42.5], [-115.75, 43.0], [-115.65, 43.25], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.75, 44.15], [-113.5, 44.25], [-112.97, 44.03], [-112.82, 43.68], [-112.75, 43.65], [-112.68, 43.68], [-112.53, 44.03], [-112.0, 44.25], [-111.47, 44.03], [-111.25, 43.5], [-111.35, 43.25], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.97, 41.97], [-112.32, 41.82], [-112.43, 41.57], [-112.0, 41.75], [-111.47, 41.53], [-111.25, 41.0], [-111.35, 40.75], [-111.25, 40.5], [-111.47, 39.97], [-112.0, 39.75], [-112.25, 39.85], [-112.5, 39.75], [-112.75, 39.85], [-112.82, 39.82], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.25, 39.35], [-114.32, 39.32], [-114.47, 38.97], [-115.0, 38.75], [-115.53, 38.97], [-115.68, 39.32], [-116.03, 39.47], [-116.25, 40.0], [-116.15, 40.25], [-116.25, 40.5], [-116.15, 40.75]]]]}, "2026-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.15, 40.75], [-116.25, 41.0], [-116.03, 41.53], [-115.68, 41.68], [-115.65, 41.75], [-115.75, 42.0], [-115.54, 42.5], [-115.75, 43.0], [-115.65, 43.25], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.75, 44.15], [-113.5, 44.25], [-112.97, 44.03], [-112.82, 43.68], [-112.75, 43.65], [-112.68, 43.68], [-112.53, 44.03], [-112.0, 44.25], [-111.47, 44.03], [-111.25, 43.5], [-111.35, 43.25], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.97, 41.97], [-112.32, 41.82], [-112.43, 41.57], [-112.0, 41.75], [-111.47, 41.53], [-111.25, 41.0], [-111.35, 40.75], [-111.25, 40.5], [-111.47, 39.97], [-112.0, 39.75], [-112.25, 39.85], [-112.5, 39.75], [-112.75, 39.85], [-112.82, 39.82], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.25, 39.35], [-114.32, 39.32], [-114.47, 38.97], [-115.0, 38.75], [-115.53, 38.97], [-115.68, 39.32], [-116.03, 39.47], [-116.25, 40.0], [-116.15, 40.25], [-116.25, 40.5], [-116.15, 40.75]]]]}, "2026-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.15, 40.75], [-116.25, 41.0], [-116.03, 41.53], [-115.68, 41.68], [-115.65, 41.75], [-115.75, 42.0], [-115.54, 42.5], [-115.75, 43.0], [-115.65, 43.25], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.75, 44.15], [-113.5, 44.25], [-112.97, 44.03], [-112.82, 43.68], [-112.75, 43.65], [-112.68, 43.68], [-112.53, 44.03], [-112.0, 44.25], [-111.47, 44.03], [-111.25, 43.5], [-111.35, 43.25], [-111.25, 43.0], [-111.47, 42.47], [-111.82, 42.32], [-111.97, 41.97], [-112.32, 41.82], [-112.43, 41.57], [-112.0, 41.75], [-111.47, 41.53], [-111.25, 41.0], [-111.35, 40.75], [-111.25, 40.5], [-111.47, 39.97], [-112.0, 39.75], [-112.25, 39.85], [-112.5, 39.75], [-112.75, 39.85], [-112.82, 39.82], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.25, 39.35], [-114.32, 39.32], [-114.47, 38.97], [-115.0, 38.75], [-115.53, 38.97], [-115.68, 39.32], [-116.03, 39.47], [-116.25, 40.0], [-116.15, 40.25], [-116.25, 40.5], [-116.15, 40.75]]]]}, "2026-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.75, 43.0], [-112.53, 43.53], [-112.0, 43.75], [-111.75, 43.65], [-111.5, 43.75], [-110.97, 43.53], [-110.75, 43.0], [-110.97, 42.47], [-111.5, 42.25], [-111.75, 42.35], [-112.0, 42.25], [-112.53, 42.47], [-112.75, 43.0]]], [[[-115.53, 42.97], [-115.75, 43.5], [-115.53, 44.03], [-115.0, 44.25], [-114.47, 44.03], [-114.25, 43.5], [-114.47, 42.97], [-115.0, 42.75], [-115.53, 42.97]]]]}, "2026-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.75, 43.0], [-112.53, 43.53], [-112.0, 43.75], [-111.75, 43.65], [-111.5, 43.75], [-110.97, 43.53], [-110.75, 43.0], [-110.97, 42.47], [-111.5, 42.25], [-111.75, 42.35], [-112.0, 42.25], [-112.53, 42.47], [-112.75, 43.0]]], [[[-115.53, 42.97], [-115.75, 43.5], [-115.53, 44.03], [-115.0, 44.25], [-114.47, 44.03], [-114.25, 43.5], [-114.47, 42.97], [-115.0, 42.75], [-115.53, 42.97]]]]}, "2026-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.5, 43.75], [-110.97, 43.53], [-110.75, 43.0], [-110.97, 42.47], [-111.5, 42.25], [-112.03, 42.47], [-112.25, 43.0], [-112.03, 43.53], [-111.5, 43.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.591563281519939}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.032097161529672}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.832914081518197, 20.86428963481518, 20.71857886936357, 15.183427005343958, 16.56030765109591, 14.858772532145224]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.845098114013695, 24.60701141357424, 25.412185923258505, 17.592715199788415, 19.05113881429037, 14.858772532145224]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.335943659988438, 7.203916282599468, 6.796487566936235, 5.0754142186106606, 6.077540315751132, 4.723239380606174]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.591563281519939, 8.430496241857327, 7.870278550742569, 5.610088771925234, 6.688632083506434, 4.723239380606174]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.693279210622581, 1.6124430300763541, 1.490577481922849, 1.3115529841023699, 1.5859292022626466, 1.3077301252512255]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.947494067959, 1.8492386435116601, 1.73814835078571, 1.3439445697646144, 1.6775746762138457, 1.3077301252512255]}}