{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:43.304111", "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": "2012-Jun-01_to_2012-Jun-05_245.5_41.0"}, "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": 2012060001755}, "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": "June 01 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 05 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 236770.10263426063}, "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": 41.0}, "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": 245.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "245.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 241.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 249.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 37.5], [-113.03, 38.03], [-112.5, 38.25], [-112.25, 38.15], [-112.0, 38.25], [-111.47, 38.03], [-111.25, 37.5], [-111.47, 36.97], [-112.0, 36.75], [-112.25, 36.85], [-112.5, 36.75], [-113.03, 36.97], [-113.25, 37.5]]], [[[-118.75, 42.0], [-118.53, 42.53], [-118.0, 42.75], [-117.47, 42.53], [-117.32, 42.18], [-117.25, 42.15], [-117.0, 42.25], [-116.5, 42.04], [-116.0, 42.25], [-115.5, 42.04], [-115.0, 42.25], [-114.47, 42.03], [-114.32, 41.68], [-113.97, 41.53], [-113.75, 41.0], [-113.85, 40.75], [-113.75, 40.5], [-113.97, 39.97], [-114.32, 39.82], [-114.35, 39.75], [-114.25, 39.5], [-114.35, 39.25], [-114.25, 39.0], [-114.35, 38.75], [-114.25, 38.5], [-114.47, 37.97], [-115.0, 37.75], [-115.3, 37.88], [-115.47, 37.47], [-115.82, 37.32], [-115.97, 36.97], [-116.5, 36.75], [-116.75, 36.85], [-117.0, 36.75], [-117.25, 36.85], [-117.5, 36.75], [-118.03, 36.97], [-118.25, 37.5], [-118.15, 37.75], [-118.25, 38.0], [-118.03, 38.53], [-117.68, 38.68], [-117.53, 39.03], [-117.0, 39.25], [-116.75, 39.15], [-116.68, 39.18], [-116.65, 39.25], [-116.75, 39.5], [-116.53, 40.03], [-116.18, 40.18], [-116.03, 40.53], [-115.5, 40.75], [-115.25, 40.65], [-115.18, 40.68], [-115.15, 40.75], [-115.18, 40.82], [-115.5, 40.96], [-116.0, 40.75], [-116.3, 40.88], [-116.47, 40.47], [-117.0, 40.25], [-117.25, 40.35], [-117.5, 40.25], [-117.75, 40.35], [-118.0, 40.25], [-118.53, 40.47], [-118.75, 41.0], [-118.65, 41.25], [-118.75, 41.5], [-118.65, 41.75], [-118.75, 42.0]]]]}, "2012-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.65, 41.75], [-118.75, 42.0], [-118.53, 42.53], [-118.0, 42.75], [-117.47, 42.53], [-117.32, 42.18], [-117.25, 42.15], [-117.18, 42.18], [-117.03, 42.53], [-116.5, 42.75], [-116.25, 42.65], [-116.0, 42.75], [-115.75, 42.65], [-115.5, 42.75], [-115.25, 42.65], [-115.18, 42.68], [-115.03, 43.03], [-114.5, 43.25], [-114.25, 43.15], [-114.0, 43.25], [-113.75, 43.15], [-113.5, 43.25], [-113.25, 43.15], [-113.0, 43.25], [-112.75, 43.15], [-112.5, 43.25], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-112.0, 41.75], [-112.25, 41.85], [-112.37, 41.8], [-112.25, 41.5], [-112.35, 41.25], [-112.32, 41.18], [-111.97, 41.03], [-111.82, 40.68], [-111.5, 40.54], [-111.0, 40.75], [-110.47, 40.53], [-110.25, 40.0], [-110.35, 39.75], [-110.25, 39.5], [-110.47, 38.97], [-110.82, 38.82], [-110.85, 38.75], [-110.75, 38.5], [-110.85, 38.25], [-110.82, 38.18], [-110.47, 38.03], [-110.25, 37.5], [-110.47, 36.97], [-111.0, 36.75], [-111.5, 36.96], [-112.0, 36.75], [-112.25, 36.85], [-112.5, 36.75], [-113.03, 36.97], [-113.18, 37.32], [-113.53, 37.47], [-113.75, 38.0], [-113.65, 38.25], [-113.68, 38.32], [-113.75, 38.35], [-114.0, 38.25], [-114.25, 38.35], [-114.32, 38.32], [-114.47, 37.97], [-115.0, 37.75], [-115.3, 37.88], [-115.47, 37.47], [-115.82, 37.32], [-115.97, 36.97], [-116.5, 36.75], [-116.75, 36.85], [-117.0, 36.75], [-117.25, 36.85], [-117.5, 36.75], [-118.03, 36.97], [-118.25, 37.5], [-118.15, 37.75], [-118.25, 38.0], [-118.15, 38.25], [-118.25, 38.5], [-118.03, 39.03], [-117.68, 39.18], [-117.53, 39.53], [-117.18, 39.68], [-117.15, 39.75], [-117.25, 40.0], [-117.15, 40.25], [-117.18, 40.32], [-117.25, 40.35], [-117.5, 40.25], [-117.75, 40.35], [-118.0, 40.25], [-118.53, 40.47], [-118.75, 41.0], [-118.65, 41.25], [-118.75, 41.5], [-118.65, 41.75]]]]}, "2012-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.65, 41.75], [-118.75, 42.0], [-118.53, 42.53], [-118.0, 42.75], [-117.47, 42.53], [-117.32, 42.18], [-117.25, 42.15], [-117.18, 42.18], [-117.03, 42.53], [-116.5, 42.75], [-116.25, 42.65], [-116.0, 42.75], [-115.75, 42.65], [-115.5, 42.75], [-115.25, 42.65], [-115.18, 42.68], [-115.03, 43.03], [-114.5, 43.25], [-114.25, 43.15], [-114.0, 43.25], [-113.75, 43.15], [-113.5, 43.25], [-113.25, 43.15], [-113.0, 43.25], [-112.75, 43.15], [-112.5, 43.25], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-112.0, 41.75], [-112.25, 41.85], [-112.37, 41.8], [-112.25, 41.5], [-112.35, 41.25], [-112.32, 41.18], [-111.97, 41.03], [-111.82, 40.68], [-111.5, 40.54], [-111.0, 40.75], [-110.47, 40.53], [-110.25, 40.0], [-110.35, 39.75], [-110.25, 39.5], [-110.47, 38.97], [-110.82, 38.82], [-110.85, 38.75], [-110.75, 38.5], [-110.85, 38.25], [-110.82, 38.18], [-110.47, 38.03], [-110.25, 37.5], [-110.47, 36.97], [-111.0, 36.75], [-111.5, 36.96], [-112.0, 36.75], [-112.25, 36.85], [-112.5, 36.75], [-113.03, 36.97], [-113.18, 37.32], [-113.53, 37.47], [-113.75, 38.0], [-113.65, 38.25], [-113.68, 38.32], [-113.75, 38.35], [-114.0, 38.25], [-114.25, 38.35], [-114.32, 38.32], [-114.47, 37.97], [-115.0, 37.75], [-115.3, 37.88], [-115.47, 37.47], [-115.82, 37.32], [-115.97, 36.97], [-116.5, 36.75], [-116.75, 36.85], [-117.0, 36.75], [-117.25, 36.85], [-117.5, 36.75], [-118.03, 36.97], [-118.25, 37.5], [-118.15, 37.75], [-118.25, 38.0], [-118.15, 38.25], [-118.25, 38.5], [-118.03, 39.03], [-117.68, 39.18], [-117.53, 39.53], [-117.18, 39.68], [-117.15, 39.75], [-117.25, 40.0], [-117.15, 40.25], [-117.18, 40.32], [-117.25, 40.35], [-117.5, 40.25], [-117.75, 40.35], [-118.0, 40.25], [-118.53, 40.47], [-118.75, 41.0], [-118.65, 41.25], [-118.75, 41.5], [-118.65, 41.75]]]]}, "2012-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.18, 39.68], [-117.15, 39.75], [-117.25, 40.0], [-117.15, 40.25], [-117.25, 40.5], [-117.15, 40.75], [-117.25, 41.0], [-117.15, 41.25], [-117.25, 41.5], [-117.15, 41.75], [-117.25, 42.0], [-117.03, 42.53], [-116.5, 42.75], [-116.25, 42.65], [-116.0, 42.75], [-115.75, 42.65], [-115.5, 42.75], [-115.25, 42.65], [-115.18, 42.68], [-115.03, 43.03], [-114.5, 43.25], [-114.25, 43.15], [-114.0, 43.25], [-113.75, 43.15], [-113.5, 43.25], [-113.25, 43.15], [-113.0, 43.25], [-112.75, 43.15], [-112.5, 43.25], [-112.25, 43.15], [-112.0, 43.25], [-111.47, 43.03], [-111.25, 42.5], [-111.47, 41.97], [-112.0, 41.75], [-112.25, 41.85], [-112.37, 41.8], [-112.25, 41.5], [-112.35, 41.25], [-112.32, 41.18], [-111.97, 41.03], [-111.82, 40.68], [-111.5, 40.54], [-111.0, 40.75], [-110.47, 40.53], [-110.25, 40.0], [-110.35, 39.75], [-110.25, 39.5], [-110.47, 38.97], [-110.82, 38.82], [-110.85, 38.75], [-110.75, 38.5], [-110.85, 38.25], [-110.82, 38.18], [-110.47, 38.03], [-110.25, 37.5], [-110.47, 36.97], [-111.0, 36.75], [-111.53, 36.97], [-111.68, 37.32], [-112.0, 37.46], [-112.5, 37.25], [-112.75, 37.35], [-113.0, 37.25], [-113.53, 37.47], [-113.75, 38.0], [-113.65, 38.25], [-113.68, 38.32], [-113.75, 38.35], [-114.0, 38.25], [-114.25, 38.35], [-114.5, 38.25], [-115.0, 38.46], [-115.32, 38.32], [-115.47, 37.97], [-116.0, 37.75], [-116.53, 37.97], [-116.68, 38.32], [-116.75, 38.35], [-116.82, 38.32], [-116.97, 37.97], [-117.5, 37.75], [-118.03, 37.97], [-118.25, 38.5], [-118.03, 39.03], [-117.68, 39.18], [-117.53, 39.53], [-117.18, 39.68]]]]}, "2012-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.0, 40.25], [-110.47, 40.03], [-110.25, 39.5], [-110.47, 38.97], [-111.0, 38.75], [-111.53, 38.97], [-111.75, 39.5], [-111.53, 40.03], [-111.0, 40.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.316115339534463}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.816838364958416}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.52666478359282, 24.285035860441894, 24.043461175850098, 24.727838450979277, 21.367438454873252]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.243781364144525, 28.443954980579235, 28.920637342450334, 29.75462393376955, 21.367438454873252]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.956020117991487, 6.8044943481597056, 6.51891765269111, 7.549884553817061, 5.884981818843357]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.493333799846596, 8.68976104275771, 8.057002859125362, 9.316115339534463, 5.884981818843357]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3723994461265463, 1.556446009692193, 1.4256391162629485, 1.5569757362781784, 1.278973641322641]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.653867748486843, 2.020361775406945, 1.7297124763965126, 2.0441588951638225, 1.278973641322641]}}