** PROVISIONAL **

Author: E. Gage

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Introduction

Objectives

  1. Summarize charteristics of NPS Intermountain Region units to faciliate discussions with NPS units and plan additional data collection
  2. Identify and characterize watersheds (HUB10) intersecting NPS Intermountain Region units to explore the utility of existing geosptatial data for informing and contextualizing potential service areas.

The following is a working analysis and all results are subject to revision.

Data and analysis

Data:

  • NPS Park Boundaries1
  • National Hydrography Dataset 10th Level HUBs2
  • National Wetlands Inventory polygons (rasterized)

Analysis: Identified all HUB10 watersheds intersecting Intermountain Region NPS units. Conducted zonal statistics for each NPS unit and interesecting HUB to calculate the area mapped for each NWI type.

NPS Units in Intermountain Region

NPS IMR – Basic info

Fig 1. All IMR units

Fig 2. Selected IMR units

Short list of sites circulated by J.W. and NPS IMR for initial outreach to individual units.

Fig 3. NPS IMR Unit area

Note varying y axis values between panels.

Note varying y axis values between panels.

Table 1. IMR Unit area

NPS IMR by Ecoregion (Omernik 1987)

Fig 4. IRM - Omernik L3 Ecoregion

Table 2. Omernik L3 Ecoregions

Fig 5. Omernik L2 Ecoregions

NPS wetlands mapped by NWI

Area mapped by NWI within the boundaries of NPS Intermountain region units:

Fig 6. NWI area by park type

Area mapped by NWI within NPS unit boundary:

Note varying y axis values between panels.

Note varying y axis values between panels.

Table 3. NWI area by IMR unit

Fig 7. NWI area by wetland type

IMR unit maps by NWI wetland type class

Fig 8.

Fig 9.

Fig 10.

Fig 11.

Fig 12.

Fig 13.

NWI types “Emergent” and “Forested/Shrub-scrub”, selected parks (16Mar28 list)

NWI types “Emergent” and “Forested/Shrub-scrub”: Top 30% of units by NWI area

Fig 14.

NWI types “Riverine”" and “Lake”, selected parks (16Mar28 list)

NWI types “Riverine”" and “Lake”: Top 30% of units by NWI area

HUB10 Watersheds intersecting NPS IMR units

Table 4. Intersecting H10 watersheds

NWI area by wetland type and HUB10

Fig 15. HUC10 watersheds

Table 5 H10 Proportion NWI

Fig 16. NWI area by wetland type per HUB10 watershed

Fig 19. Proportion of each intersecting H10

  • Proportion of total NWI mapped area by wetland type and HUB10
  • Each stacked bar represents on interesecting HUB10.

References

  • Omernik, JM. 1987. Ecoregions of the conterminous United States, (map scale 1:7,500,000) Ann. Assoc. Am. Geogr., 77: 118–125

  1. NPS IRMA Data Store↩

  2. NHD Watersheds↩