Global CDHE Event Catalogue (0.1°, 1961–2023)

This dataset is a global catalogue of Compound Dry–Hot Extreme (CDHE) events, derived from the daily Standardized Soil-moisture–Temperature Compound Index (SSTCI). Each record describes a single CDHE event detected at a land grid cell, including its timing, duration, and severity characteristics. The catalogue covers the period 1961–2023 at 0.1° spatial resolution over global land areas (Antarctica cropped out). File: Global_CDHE_1961_2023.nc Format: NetCDF-4 (classic model), CF-1.8 conventions File structure The catalogue uses a flattened (event-list) format. Instead of storing a separate table per grid cell, every event from every grid cell is stored as one row in a single long list. The location of each event is recorded through index and coordinate variables, so the original per-cell organization can be fully reconstructed. Dimensions Dimension Length Description event (total number of events) one entry per detected CDHE event lat 1500 latitude axis of the underlying 0.1° grid lon 3600 longitude axis of the underlying 0.1° grid Coordinate axis variables Variable Dimension Type Description latitude lat single Latitude values of the grid rows (degrees north) longitude lon single Longitude values of the grid columns (degrees east) Event variables (all indexed by event) Variable Type Units Description lat_index int32 — Row index (1-based) into latitude for the event's grid cell lon_index int32 — Column index (1-based) into longitude for the event's grid cell lat single degrees_north Latitude of the event's grid cell lon single degrees_east Longitude of the event's grid cell serial int32 — Event serial number within its grid cell duration single days Duration of the event (see definitions below) total_severity single — Total severity of the event (see definitions below) intensity single — Average daily intensity of the event (see definitions below) start_year int16 — Start year start_month int8 — Start month (1–12) start_day int8 — Start day (1–31) end_year int16 — End year end_month int8 — End month (1–12) end_day int8 — End day (1–31)