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GE008 – Simplified metadata
Dataset
- Database Code
- GE008
- Title
- Road-related erosion from the February 1996 flood in the Lookout Creek and Blue River watersheds, Oregon
- Abstract
- Studies of the effects of forest roads on mountain watersheds (e.g. Jones and Grant 1996; Wemple et al. 1996) led to asking how sedimentation processes were affected by roads during the flood of February, 1996. Of interest were how roads influenced erosional processes and how flood-induced erosion affected the transportation network. By employing concepts of sediment budgeting and disturbance cascades, this study aims to create a landscape context for understanding the impact of an extensive road network on the geomorphic imprint left by this flood of record in February 1996.
- Keywords
- debris flows; landslides; disturbance; erosion; sedimentation; inorganic nutrients; roads; disturbance; inorganic nutrients
- Date begin
- 1999-05-02
- Date end
- 1999-09-02
- Principal Investigator
- Julia A. Jones
Entities
- GE00801
1. GE00801 - Attribute list
| Attribute | Type | Domain | Minimum | Maximum | Unit |
|---|---|---|---|---|---|
| STCODE | varchar | freetext | |||
| FORMAT | numeric(1) | range | 1.0000 | 1.0000 | number |
| F_NUMBER | numeric(1.000000) | range | 1.0000 | 103.0000 | number |
| F_TYPE | varchar | enum | |||
| LANDSLIDE | varchar | freetext | |||
| VOL_H | numeric(1.000000) | range | 0.0000 | 6000.0000 | cubic meters |
| VOL_S | numeric(1.000000) | range | 0.0000 | 4750.0000 | cubic meters |
| VOL_T | numeric(1.000000) | range | 0.0000 | 5000.0000 | cubic meters |
| VOL_R | numeric(1.000000) | range | 0.0000 | 6255.0000 | cubic meters |
| VOL_OUT | numeric(1.000000) | range | 0.0000 | 6255.0000 | cubic meters |
| BASIN | varchar | enum | |||
| DECADE | varchar | enum | |||
| ELEV | varchar | enum | |||
| POSITION | varchar | enum | |||
| ASSOC | varchar | freetext |
Attribute definitions
- ASSOC
- Refers to number of associated feature
- BASIN
- Refers to basin where feature was mapped
- DECADE
- Refers to decade of construction for road on which feature was mapped
- ELEV
- Refers to elevation zone in which feature was mapped
- FORMAT
- Format number
- F_NUMBER
- Feature number (erosional or depositional features)
- F_TYPE
- Type of feature (based on the point of origin relative to road network)
- LANDSLIDE
- Refers to identification number in Swanson/Wallenstein inventory of landslides - see GE007
- POSITION
- Landscape position of inventoried feature
- STCODE
- Study code
- VOL_H
- Volume of hillslope material
- VOL_OUT
- Volume yielded below the road
- VOL_R
- Volume of road material
- VOL_S
- Volume stored on the road
- VOL_T
- Volume transported through the road
Enumerated domains
Enumerated domain for attribute: F_TYPE
| Code | Description |
|---|---|
| hs | Hillslope slides |
| ff | Fillslope slides |
| cf | Cutslope slides |
| df | Debris flows |
| s | Slumps |
| pc | Plugged culverts |
| id | Incised ditches |
| g | Gullies |
Enumerated domain for attribute: BASIN
| Code | Description |
|---|---|
| lo | Lookout creek |
| br | Upper blue river |
Enumerated domain for attribute: DECADE
| Code | Description |
|---|---|
| 50 | Before 1950 |
| 60 | Before 1960 |
| 70 | 1961-1970 |
| 80 | 1971-1980 |
| 90 | 1981-1990 |
Enumerated domain for attribute: ELEV
| Code | Description |
|---|---|
| 1 | 400-800 meter elevation |
| 2 | 801-1200 meter elevation |
| 3 | >1200 meter elevation |
Enumerated domain for attribute: POSITION
| Code | Description |
|---|---|
| m | Midslopes: everything not defined as valley floor or ridge/upslope |
| v | Valley floors: delineated with a 200 meter buffer around fifth-order streams and delineated with a 100 meter buffer around fourth-order streams |
| r | Riddges/upperslopes defined with a 100 meter buffer on a linear network of ridges digitized from 7.5' topographic maps |