Downloading HYDAT | Working with HYDAT tables

Package loading | tidyhydat package | HYDAT download | Combining validated and provisional data | Usage of HYDAT functions | Real-time functions | Meterological Service of Canada datamart - realtime_dd() | Real-time web service - realtime_ws() | Using the web service without HYDAT | Historical flows and levels via web service | Search functions | Using joins | License

Introduction | Familiarity with the tidyverse | Example 1: Basic Data Extraction and Plotting | Objective | Example 2: Distribution of Historical Data

What sources are available? | Station metadata across all sources | Fetch data - router auto-detects the source | Combine with bind_rows (same schema, all sources) | Annual summary across providers | Explicit source bypasses the router

Overview | The adapter contract | Output schemas | Realtime (sub-daily) - fetch_flows_fn / fetch_levels_fn | Daily - fetch_daily_flows_fn / fetch_daily_levels_fn | Stations - list_stations_meta_fn | How the router works | Built-in adapters | Hydro-Quebec (hydroquebec) | Registration | Writing a new adapter | Step 1 - Implement the internal functions | Using a stored station list when no endpoint exists | Step 2 - Register the adapter | Step 3 - Add tests | What the schema validator will catch

Introduction | Inputs | Step 1: Load points | Step 2: Create virtual plots | Step 3: Extract horizons | Step 4: Create fisheye photos | Step 5: Process for solar radiation | Graphical parameter calibration | Next steps

Q: Does gaplightr estimate LAI like GLA does? | Q: How is the Light Penetration Index (LPI) calculated, and does GLA provide it?

Introduction | Step 1: Load the raw photo | Step 2: Preprocess the photo | Step 3: Load a point location | Step 4: Inspect gap fractions | Step 5: Compute solar irradiance | Next steps

Filtering data with the API