💧Watershed Analysis

Reading layer `Groundwater_Management_Districts_(GMD)' from data source 
  `C:\Users\a905h226\OneDrive - University of Kansas\Desktop\KGS project GW\Step By Step Code\Input\Groundwater_Management_Districts_(GMD)\Groundwater_Management_Districts_(GMD).shp' 
  using driver `ESRI Shapefile'
Simple feature collection with 5 features and 13 fields
Geometry type: POLYGON
Dimension:     XY
Bounding box:  xmin: -11360320 ymin: 4438158 xmax: -10835300 ymax: 4847409
Projected CRS: WGS 84 / Pseudo-Mercator

Fig 1:

Domain area with river network

Fig 2:

Domain area summary statistics

Fig 3:

Current land cover breakdown by type (2019) 


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Fig 4

Temporal trend in annual and seasonal average rainfall, with extreme event classifications represented by distinct colors. The black line connects individual annual rainfall values, while the dashed red line represents a linear regression trend, with the gray shaded region indicating the confidence interval. Points are color-coded to reflect different extreme event types, including isolated dry and wet years, persistent dry and wet periods, and transition events (wet-to-dry and dry-to-wet).

Fig 5

Temporal distribution of hydroclimatic extreme events per pixel within the TargetDomain. The bars represent the proportion of the watershed experiencing different extreme event types each year and each season. Positive values (above the zero line) correspond to wet-related events, while negative values (below the zero line) correspond to dry-related events.

Fig 6

Decadal trends for annual and seasonal data in normalized hydro climatic extreme events within the watershed. The stacked bars represent the average number of extreme events per decade, with wet-related events shown above the zero line and dry-related events below.

Fig 7

3 years, 5 years and ten-years moving average of precipitation percentiles in the (TargetDomain) from 1895 to the present. The moving average was computed using rolling window to smooth interannual variability and highlight long-term trends. The red dashed line represents the 20th percentile threshold, indicating dry conditions, while the blue dashed line represents the 80th percentile threshold, indicating wet conditions. Periods where the moving average crosses these thresholds suggest prolonged wet or dry phases.

Fig 8

Proportion of dry and wet extreme events per decade in the TargetDomain from 1900 to 2019. The bars represent the proportion of extreme events classified as dry (red) and wet (blue) in each decade. The classification of each decade into “Persistent Dry,” “Persistent Wet,” or “Mixed” regimes is indicated at the top of the figure, based on the dominance of extreme events (≥60% wet or dry). The results highlight decadal-scale variability in hydro climatic extremes, with shifts between prolonged dry and wet periods over time.

Fig 9

Monthly Climate Variables: Source Gridmet