{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:39.917579", "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-Jul-17_to_2025-Jul-22_171.5_-14.0"}, "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": 2025070002331}, "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 17 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2025"}, "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": 193865.09858070352}, "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": ["Fiji"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Pacific Ocean"]}, "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": -14.0}, "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": 171.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "171.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 170.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 176.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[170.5, -13.46], [170.82, -13.32], [170.97, -12.97], [171.5, -12.75], [171.75, -12.85], [172.0, -12.75], [172.25, -12.85], [172.5, -12.75], [173.03, -12.97], [173.18, -13.32], [173.25, -13.35], [173.5, -13.25], [173.75, -13.35], [174.0, -13.25], [174.25, -13.35], [174.5, -13.25], [175.03, -13.47], [175.18, -13.82], [175.25, -13.85], [175.5, -13.75], [176.03, -13.97], [176.25, -14.5], [176.03, -15.03], [175.68, -15.18], [175.65, -15.25], [175.68, -15.32], [175.75, -15.35], [176.0, -15.25], [176.53, -15.47], [176.68, -15.82], [177.03, -15.97], [177.25, -16.5], [177.03, -17.03], [176.68, -17.18], [176.53, -17.53], [176.0, -17.75], [175.75, -17.65], [175.5, -17.75], [175.25, -17.65], [175.0, -17.75], [174.47, -17.53], [174.32, -17.18], [174.25, -17.15], [174.0, -17.25], [173.47, -17.03], [173.32, -16.68], [173.25, -16.65], [173.0, -16.75], [172.75, -16.65], [172.68, -16.68], [172.53, -17.03], [172.0, -17.25], [171.75, -17.15], [171.5, -17.25], [170.97, -17.03], [170.82, -16.68], [170.47, -16.53], [170.32, -16.18], [169.97, -16.03], [169.75, -15.5], [169.85, -15.25], [169.82, -15.18], [169.47, -15.03], [169.25, -14.5], [169.35, -14.25], [169.25, -14.0], [169.47, -13.47], [170.0, -13.25], [170.5, -13.46]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.97, -12.97], [172.5, -12.75], [173.03, -12.97], [173.25, -13.5], [173.03, -14.03], [172.5, -14.25], [171.97, -14.03], [171.75, -13.5], [171.97, -12.97]]]]}, "2025-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.97, -12.97], [171.5, -12.75], [171.75, -12.85], [172.0, -12.75], [172.25, -12.85], [172.5, -12.75], [173.03, -12.97], [173.25, -13.5], [173.15, -13.75], [173.25, -14.0], [173.03, -14.53], [172.5, -14.75], [172.25, -14.65], [172.0, -14.75], [171.75, -14.65], [171.5, -14.75], [171.25, -14.65], [171.0, -14.75], [170.47, -14.53], [170.25, -14.0], [170.47, -13.47], [170.82, -13.32], [170.97, -12.97]]]]}, "2025-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.25, -14.0], [169.47, -13.47], [170.0, -13.25], [170.5, -13.46], [170.82, -13.32], [170.97, -12.97], [171.5, -12.75], [171.75, -12.85], [172.0, -12.75], [172.25, -12.85], [172.5, -12.75], [173.03, -12.97], [173.18, -13.32], [173.25, -13.35], [173.5, -13.25], [173.75, -13.35], [174.0, -13.25], [174.25, -13.35], [174.5, -13.25], [175.03, -13.47], [175.18, -13.82], [175.25, -13.85], [175.5, -13.75], [176.03, -13.97], [176.25, -14.5], [176.03, -15.03], [175.68, -15.18], [175.53, -15.53], [175.0, -15.75], [174.75, -15.65], [174.68, -15.68], [174.65, -15.75], [174.68, -15.82], [175.03, -15.97], [175.25, -16.5], [175.03, -17.03], [174.5, -17.25], [174.25, -17.15], [174.0, -17.25], [173.47, -17.03], [173.32, -16.68], [173.25, -16.65], [173.0, -16.75], [172.75, -16.65], [172.68, -16.68], [172.53, -17.03], [172.0, -17.25], [171.75, -17.15], [171.5, -17.25], [170.97, -17.03], [170.82, -16.68], [170.47, -16.53], [170.32, -16.18], [169.97, -16.03], [169.75, -15.5], [169.85, -15.25], [169.82, -15.18], [169.47, -15.03], [169.25, -14.5], [169.35, -14.25], [169.25, -14.0]]]]}, "2025-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.25, -14.0], [169.47, -13.47], [170.0, -13.25], [170.5, -13.46], [170.82, -13.32], [170.97, -12.97], [171.5, -12.75], [171.75, -12.85], [172.0, -12.75], [172.25, -12.85], [172.5, -12.75], [173.03, -12.97], [173.18, -13.32], [173.25, -13.35], [173.5, -13.25], [173.75, -13.35], [174.0, -13.25], [174.25, -13.35], [174.5, -13.25], [175.03, -13.47], [175.18, -13.82], [175.25, -13.85], [175.5, -13.75], [176.03, -13.97], [176.25, -14.5], [176.03, -15.03], [175.68, -15.18], [175.65, -15.25], [175.68, -15.32], [175.75, -15.35], [176.0, -15.25], [176.53, -15.47], [176.68, -15.82], [177.03, -15.97], [177.25, -16.5], [177.03, -17.03], [176.68, -17.18], [176.53, -17.53], [176.0, -17.75], [175.75, -17.65], [175.5, -17.75], [175.25, -17.65], [175.0, -17.75], [174.47, -17.53], [174.32, -17.18], [174.25, -17.15], [174.0, -17.25], [173.47, -17.03], [173.32, -16.68], [173.25, -16.65], [173.0, -16.75], [172.75, -16.65], [172.68, -16.68], [172.53, -17.03], [172.0, -17.25], [171.75, -17.15], [171.5, -17.25], [170.97, -17.03], [170.82, -16.68], [170.47, -16.53], [170.32, -16.18], [169.97, -16.03], [169.75, -15.5], [169.85, -15.25], [169.82, -15.18], [169.47, -15.03], [169.25, -14.5], [169.35, -14.25], [169.25, -14.0]]]]}, "2025-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.25, -14.0], [169.47, -13.47], [170.0, -13.25], [170.5, -13.46], [170.82, -13.32], [170.97, -12.97], [171.5, -12.75], [171.75, -12.85], [172.0, -12.75], [172.25, -12.85], [172.5, -12.75], [173.03, -12.97], [173.18, -13.32], [173.25, -13.35], [173.5, -13.25], [173.75, -13.35], [174.0, -13.25], [174.25, -13.35], [174.5, -13.25], [175.03, -13.47], [175.18, -13.82], [175.25, -13.85], [175.5, -13.75], [176.03, -13.97], [176.25, -14.5], [176.03, -15.03], [175.68, -15.18], [175.65, -15.25], [175.68, -15.32], [175.75, -15.35], [176.0, -15.25], [176.53, -15.47], [176.68, -15.82], [177.03, -15.97], [177.25, -16.5], [177.03, -17.03], [176.68, -17.18], [176.53, -17.53], [176.0, -17.75], [175.75, -17.65], [175.5, -17.75], [175.25, -17.65], [175.0, -17.75], [174.47, -17.53], [174.32, -17.18], [174.25, -17.15], [174.0, -17.25], [173.47, -17.03], [173.32, -16.68], [173.25, -16.65], [173.0, -16.75], [172.75, -16.65], [172.68, -16.68], [172.53, -17.03], [172.0, -17.25], [171.75, -17.15], [171.5, -17.25], [170.97, -17.03], [170.82, -16.68], [170.47, -16.53], [170.32, -16.18], [169.97, -16.03], [169.75, -15.5], [169.85, -15.25], [169.82, -15.18], [169.47, -15.03], [169.25, -14.5], [169.35, -14.25], [169.25, -14.0]]]]}, "2025-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.25, -14.0], [169.47, -13.47], [170.0, -13.25], [170.5, -13.46], [170.82, -13.32], [170.97, -12.97], [171.5, -12.75], [172.03, -12.97], [172.18, -13.32], [172.25, -13.35], [172.5, -13.25], [173.03, -13.47], [173.18, -13.82], [173.25, -13.85], [173.5, -13.75], [174.03, -13.97], [174.18, -14.32], [174.25, -14.35], [174.5, -14.25], [175.03, -14.47], [175.18, -14.82], [175.53, -14.97], [175.68, -15.32], [175.75, -15.35], [176.0, -15.25], [176.53, -15.47], [176.68, -15.82], [177.03, -15.97], [177.25, -16.5], [177.03, -17.03], [176.68, -17.18], [176.53, -17.53], [176.0, -17.75], [175.75, -17.65], [175.5, -17.75], [175.25, -17.65], [175.0, -17.75], [174.47, -17.53], [174.32, -17.18], [173.97, -17.03], [173.82, -16.68], [173.47, -16.53], [173.32, -16.18], [173.25, -16.15], [173.0, -16.25], [172.47, -16.03], [172.32, -15.68], [172.25, -15.65], [172.0, -15.75], [171.75, -15.65], [171.5, -15.75], [171.25, -15.65], [171.0, -15.75], [170.75, -15.65], [170.5, -15.75], [169.97, -15.53], [169.82, -15.18], [169.47, -15.03], [169.25, -14.5], [169.35, -14.25], [169.25, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.999340568984735}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2425402720194123}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.124487813313806, 26.994806271507684, 26.854181196104832, 26.883455560146217, 26.778104322384593, 26.658889770507812]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.124487813313806, 27.07404734293624, 27.42078552246096, 27.294549560546898, 27.324892934163415, 27.255339558919275]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8983770640550688, 0.8843052941325757, 1.193596410957493, 1.3408954653868188, 1.2679974137308259, 1.1774910447526779]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8983770640550688, 0.9288273828995557, 1.40762182853166, 1.999340568984735, 1.7918470178763641, 1.4673322862677196]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.487651297071032, 1.436889901345832, 1.6810329518984983, 1.8222271184069716, 1.7905937921066692, 1.7081081386687422]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.487651297071032, 1.5063678297946486, 2.2039397418358306, 2.4095543170009783, 2.4697638131204305, 2.320144170239138]}}