{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:06.263001", "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": "2025-Jun-29_to_2025-Jul-02_245.5_31.5"}, "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": 2025060002875}, "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 29 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 02 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 67675.19498739619}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "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": ["Gulf of California"]}, "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": 31.5}, "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": 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": 244.75}, "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": 31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 32.5], [-115.53, 33.03], [-115.18, 33.18], [-115.03, 33.53], [-114.5, 33.75], [-114.25, 33.65], [-114.0, 33.75], [-113.75, 33.65], [-113.68, 33.68], [-113.53, 34.03], [-113.0, 34.25], [-112.47, 34.03], [-112.3, 33.63], [-112.18, 33.68], [-112.03, 34.03], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.25, 34.0], [-110.35, 33.75], [-110.25, 33.5], [-110.47, 32.97], [-110.87, 32.8], [-110.75, 32.5], [-110.97, 31.97], [-111.32, 31.82], [-111.47, 31.47], [-112.0, 31.25], [-112.5, 31.46], [-112.82, 31.32], [-112.97, 30.97], [-113.5, 30.75], [-113.75, 30.85], [-114.0, 30.75], [-114.25, 30.85], [-114.5, 30.75], [-115.03, 30.97], [-115.25, 31.5], [-115.15, 31.75], [-115.18, 31.82], [-115.53, 31.97], [-115.75, 32.5]]]]}, "2025-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 32.5], [-115.53, 33.03], [-115.18, 33.18], [-115.03, 33.53], [-114.5, 33.75], [-114.25, 33.65], [-114.0, 33.75], [-113.75, 33.65], [-113.68, 33.68], [-113.53, 34.03], [-113.0, 34.25], [-112.75, 34.15], [-112.5, 34.25], [-112.25, 34.15], [-112.0, 34.25], [-111.75, 34.15], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.25, 34.0], [-110.35, 33.75], [-110.25, 33.5], [-110.47, 32.97], [-110.82, 32.82], [-110.85, 32.75], [-110.75, 32.5], [-110.97, 31.97], [-111.32, 31.82], [-111.47, 31.47], [-112.0, 31.25], [-112.5, 31.46], [-112.82, 31.32], [-112.97, 30.97], [-113.5, 30.75], [-113.75, 30.85], [-114.0, 30.75], [-114.25, 30.85], [-114.5, 30.75], [-115.03, 30.97], [-115.25, 31.5], [-115.15, 31.75], [-115.18, 31.82], [-115.53, 31.97], [-115.75, 32.5]]]]}, "2025-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 32.5], [-115.53, 33.03], [-115.18, 33.18], [-115.03, 33.53], [-114.5, 33.75], [-114.25, 33.65], [-114.0, 33.75], [-113.75, 33.65], [-113.68, 33.68], [-113.53, 34.03], [-113.0, 34.25], [-112.75, 34.15], [-112.5, 34.25], [-112.25, 34.15], [-112.0, 34.25], [-111.75, 34.15], [-111.68, 34.18], [-111.53, 34.53], [-111.0, 34.75], [-110.47, 34.53], [-110.25, 34.0], [-110.35, 33.75], [-110.25, 33.5], [-110.47, 32.97], [-110.82, 32.82], [-110.85, 32.75], [-110.75, 32.5], [-110.97, 31.97], [-111.32, 31.82], [-111.47, 31.47], [-112.0, 31.25], [-112.5, 31.46], [-112.82, 31.32], [-112.97, 30.97], [-113.5, 30.75], [-113.75, 30.85], [-114.0, 30.75], [-114.25, 30.85], [-114.5, 30.75], [-115.03, 30.97], [-115.25, 31.5], [-115.15, 31.75], [-115.18, 31.82], [-115.53, 31.97], [-115.75, 32.5]]]]}, "2025-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.03, 32.97], [-113.25, 33.5], [-113.03, 34.03], [-112.5, 34.25], [-112.25, 34.15], [-112.0, 34.25], [-111.47, 34.03], [-111.32, 33.68], [-110.97, 33.53], [-110.75, 33.0], [-110.85, 32.75], [-110.75, 32.5], [-110.97, 31.97], [-111.5, 31.75], [-112.03, 31.97], [-112.25, 32.5], [-112.15, 32.75], [-112.18, 32.82], [-112.25, 32.85], [-112.5, 32.75], [-113.03, 32.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.670219970333051}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5634243338241}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.90808274642285, 36.92796996679061, 36.41463222014596, 36.97262471516933]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.64870986938479, 39.63626887003585, 38.7173947652181, 37.61817321777346]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6266713654117964, 4.337458993096802, 3.749454697196519, 2.7093312550015582]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.094681901656486, 5.670219970333051, 4.665246675064395, 3.065682964719315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3484079955438524, 2.2624479645117384, 1.9230751294751007, 1.3078239865928691]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5708167955866632, 3.609663143926839, 2.756056515165649, 1.4702467988518766]}}