{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:41.581065", "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-Oct-06_to_2023-Oct-11_249.5_29.5"}, "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": 2023100001115}, "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": "October 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 11 2023"}, "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": 116257.56895482165}, "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": 29.5}, "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": 249.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 247.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 251.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-109.97, 32.53], [-109.75, 32.0], [-109.85, 31.75], [-109.82, 31.68], [-109.47, 31.53], [-109.25, 31.0], [-109.35, 30.75], [-109.32, 30.68], [-109.25, 30.65], [-109.0, 30.75], [-108.47, 30.53], [-108.25, 30.0], [-108.35, 29.75], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.32, 28.32], [-109.47, 27.97], [-110.0, 27.75], [-110.5, 27.96], [-111.0, 27.75], [-111.53, 27.97], [-111.75, 28.5], [-111.54, 29.0], [-111.68, 29.32], [-112.03, 29.47], [-112.25, 30.0], [-112.04, 30.5], [-112.25, 31.0], [-112.15, 31.25], [-112.18, 31.32], [-112.25, 31.35], [-112.5, 31.25], [-113.03, 31.47], [-113.25, 32.0], [-113.15, 32.25], [-113.25, 32.5], [-113.15, 32.75], [-113.25, 33.0], [-113.03, 33.53], [-112.68, 33.68], [-112.53, 34.03], [-112.0, 34.25], [-111.75, 34.15], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.32, 34.18], [-110.25, 34.15], [-110.0, 34.25], [-109.47, 34.03], [-109.25, 33.5], [-109.47, 32.97], [-110.0, 32.75], [-110.25, 32.85], [-110.32, 32.82], [-110.35, 32.75], [-110.32, 32.68], [-109.97, 32.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America", "N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.15, 31.75], [-112.25, 32.0], [-112.03, 32.53], [-111.5, 32.75], [-111.25, 32.65], [-111.0, 32.75], [-110.75, 32.65], [-110.5, 32.75], [-109.97, 32.53], [-109.75, 32.0], [-109.85, 31.75], [-109.82, 31.68], [-109.47, 31.53], [-109.25, 31.0], [-109.35, 30.75], [-109.32, 30.68], [-109.25, 30.65], [-109.0, 30.75], [-108.47, 30.53], [-108.25, 30.0], [-108.35, 29.75], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.32, 28.32], [-109.47, 27.97], [-110.0, 27.75], [-110.5, 27.96], [-111.0, 27.75], [-111.53, 27.97], [-111.75, 28.5], [-111.53999999999999, 29.0], [-111.68, 29.32], [-112.03, 29.47], [-112.25, 30.0], [-112.03999999999999, 30.5], [-112.25, 31.0], [-112.15, 31.25], [-112.25, 31.5], [-112.15, 31.75]]], [[[-111.0, 33.25], [-111.53, 33.47], [-111.75, 34.0], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.25, 34.0], [-110.47, 33.47], [-111.0, 33.25]]]]}, "2023-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 32.5], [-113.15, 32.75], [-113.25, 33.0], [-113.03, 33.53], [-112.68, 33.68], [-112.53, 34.03], [-112.0, 34.25], [-111.75, 34.15], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.32, 34.18], [-110.25, 34.15], [-110.0, 34.25], [-109.47, 34.03], [-109.25, 33.5], [-109.47, 32.97], [-110.0, 32.75], [-110.25, 32.85], [-110.32, 32.82], [-110.35, 32.75], [-110.32, 32.68], [-109.97, 32.53], [-109.75, 32.0], [-109.85, 31.75], [-109.82, 31.68], [-109.47, 31.53], [-109.25, 31.0], [-109.35, 30.75], [-109.32, 30.68], [-109.25, 30.65], [-109.0, 30.75], [-108.47, 30.53], [-108.25, 30.0], [-108.35, 29.75], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.32, 28.32], [-109.47, 27.97], [-110.0, 27.75], [-110.5, 27.96], [-111.0, 27.75], [-111.53, 27.97], [-111.75, 28.5], [-111.53999999999999, 29.0], [-111.68, 29.32], [-112.03, 29.47], [-112.25, 30.0], [-112.03999999999999, 30.5], [-112.25, 31.0], [-112.15, 31.25], [-112.18, 31.32], [-112.25, 31.35], [-112.5, 31.25], [-113.03, 31.47], [-113.25, 32.0], [-113.15, 32.25], [-113.25, 32.5]]]]}, "2023-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 32.5], [-113.15, 32.75], [-113.25, 33.0], [-113.03, 33.53], [-112.68, 33.68], [-112.53, 34.03], [-112.0, 34.25], [-111.75, 34.15], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.32, 34.18], [-110.25, 34.15], [-110.0, 34.25], [-109.47, 34.03], [-109.25, 33.5], [-109.47, 32.97], [-110.0, 32.75], [-110.25, 32.85], [-110.32, 32.82], [-110.35, 32.75], [-110.32, 32.68], [-109.97, 32.53], [-109.75, 32.0], [-109.85, 31.75], [-109.82, 31.68], [-109.47, 31.53], [-109.25, 31.0], [-109.35, 30.75], [-109.32, 30.68], [-109.25, 30.65], [-109.0, 30.75], [-108.47, 30.53], [-108.25, 30.0], [-108.35, 29.75], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.32, 28.32], [-109.47, 27.97], [-110.0, 27.75], [-110.5, 27.96], [-111.0, 27.75], [-111.53, 27.97], [-111.75, 28.5], [-111.53999999999999, 29.0], [-111.68, 29.32], [-112.03, 29.47], [-112.25, 30.0], [-112.03999999999999, 30.5], [-112.25, 31.0], [-112.15, 31.25], [-112.18, 31.32], [-112.25, 31.35], [-112.5, 31.25], [-113.03, 31.47], [-113.25, 32.0], [-113.15, 32.25], [-113.25, 32.5]]]]}, "2023-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 32.5], [-113.15, 32.75], [-113.25, 33.0], [-113.03, 33.53], [-112.68, 33.68], [-112.53, 34.03], [-112.0, 34.25], [-111.75, 34.15], [-111.5, 34.25], [-111.25, 34.15], [-111.0, 34.25], [-110.75, 34.15], [-110.5, 34.25], [-110.25, 34.15], [-110.0, 34.25], [-109.47, 34.03], [-109.25, 33.5], [-109.47, 32.97], [-110.0, 32.75], [-110.25, 32.85], [-110.32, 32.82], [-110.35, 32.75], [-110.32, 32.68], [-109.97, 32.53], [-109.75, 32.0], [-109.85, 31.75], [-109.75, 31.5], [-109.85, 31.25], [-109.75, 31.0], [-109.85, 30.75], [-109.82, 30.68], [-109.47, 30.53], [-109.32, 30.18], [-109.25, 30.15], [-109.0, 30.25], [-108.47, 30.03], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.5, 28.25], [-109.75, 28.35], [-110.0, 28.25], [-110.53, 28.47], [-110.68, 28.82], [-111.03, 28.97], [-111.18, 29.32], [-111.53, 29.47], [-111.75, 30.0], [-111.65, 30.25], [-111.68, 30.32], [-112.03, 30.47], [-112.25, 31.0], [-112.15, 31.25], [-112.18, 31.32], [-112.25, 31.35], [-112.5, 31.25], [-113.03, 31.47], [-113.25, 32.0], [-113.15, 32.25], [-113.25, 32.5]]]]}, "2023-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.75, 31.5], [-111.53, 32.03], [-111.0, 32.25], [-110.47, 32.03], [-110.32, 31.68], [-109.97, 31.53], [-109.75, 31.0], [-109.85, 30.75], [-109.75, 30.5], [-109.85, 30.25], [-109.82, 30.18], [-109.75, 30.15], [-109.5, 30.25], [-109.25, 30.15], [-109.0, 30.25], [-108.47, 30.03], [-108.25, 29.5], [-108.47, 28.97], [-108.82, 28.82], [-108.97, 28.47], [-109.5, 28.25], [-109.75, 28.35], [-110.0, 28.25], [-110.53, 28.47], [-110.68, 28.82], [-111.03, 28.97], [-111.25, 29.5], [-111.15, 29.75], [-111.18, 29.82], [-111.53, 29.97], [-111.75, 30.5], [-111.53999999999999, 31.0], [-111.75, 31.5]]]]}, "2023-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.03, 30.03], [-110.5, 30.25], [-109.97, 30.03], [-109.75, 29.5], [-109.97, 28.97], [-110.5, 28.75], [-111.03, 28.97], [-111.25, 29.5], [-111.03, 30.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.196466947436761}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.099013726351975}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.925757704416696, 28.050878341157727, 26.863355242301964, 26.676184269639805, 25.316413504499053, 27.413589508052894]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.806357370356125, 32.54807579877553, 31.384937454674684, 30.497791544489644, 27.650493871628044, 27.413589508052894]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7282198761625467, 4.825020401365536, 3.942798521274147, 4.020043681652204, 3.1172192814201893, 3.2659311187150024]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.892263617409014, 7.196466947436761, 6.234316131640526, 5.130246640816495, 3.58189107849779, 3.2659311187150024]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6538066243505187, 1.941932872968396, 1.5598876904078152, 1.5276007995453298, 1.386806657847419, 1.3925934500742796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.211676998220596, 2.4813676989652733, 2.090211590905136, 1.7794285675384682, 1.5452404979386074, 1.3925934500742796]}}