Exposure and covariate data acquisition

[sigmafelix]

Temporal range

• 2000-2023 (intersecting PEGS period)

Intersection with climate change

• Climate change --> [black box] --> (Health outcomes)
  • Climate variable: mesoscale climate model outputs, extreme weather events (or diversion from "normal status" or "equilibrium")
  • [black box] can be filled with--
  • Land degradation
  • Greenspace degradation
• What could be relevant in NC?

List of data acquisition targets

• Extreme Weather Events (EWE) (i.e., relevant and pronounced categories in NC)

  • [ ] Storms (inclusive of hurricanes; events) -- and floods (consequence)
    • [x] NOAA Storm database
  • [ ] Wildfires
    • [x] Smoke (HMS)
    • [x] Wildfire-sourced PM2.5 (Childs et al. 2022)
    • [ ] Event locations

• Air pollution: data sources should be checked, develop a model for this study or use other sources?

  • PM2.5
  • NO2

• Greenness

  • EVI/NDVI
    • MODIS (250m and 500m)
    • Landsat-7 (30m, scanline missing problem should be considered)
    • Landsat-8 (30m)
    • Landsat-9 (30-m)
  • Tree canopy: check whether it is available

• Altitude

  • SRTM
  • Nationally sourced
  • Derived products
    • Slope
    • Relative topography (is this location convex or concave?; scale dependent)
    • Topographic indices (e.g., Geomorphons)

• Noise

  • DOT (only available 2016, 2018, and 2020)

• More data source ideas?

[sigmafelix]

• Small- and large-scale topographic features (e.g., slope, concavity, relative altitude, etc.) from DEM
• Climate variables: PRISM 30-year normal and yearly products (precipitation, evapotranspiration, surface temperature)
• Vegetation types: Cropscape, reclassified (crops, grass, tree, water, barren, impervious)

[sigmafelix]

Abbreviation

• CC: climate change
• WE: (extreme) weather event
• GE: genetic factor
• MH: mental health outcome

Two-stage

Which is first? GE or WE?

WE effect after considering GE

graph LR;
    GE-->MH;

graph LR;
    MH["MH|GE"];
    CC-->WE;
    WE-->MH;

GE effect after considering WE

graph LR;
    MH["MH|WE"];
    CC-->WE;
    WE-->MH;

graph LR;
    MH["MH|WE"];
    GE-->MH;

Alternative conceptual model

• Extreme weather event to genetic predisposition or gene-environment interaction

  graph LR;
  CC-->WE;
  WE-->MH;
  GE-->MH;
  WE -- ? -->GE;