Land Use 1995

1
Middle Atlantic Users Group
Philadelphia, PA
The NJDEP 2002 LAND USE LAND COVER AND HYDRO
PROJECT
Lawrence L. Thornton Geographic Information
Coordinator, NJDEP Craig Coutros Manager, 2002
LULC Project John Tyrawski Chief
Scientist Consultant AIS, INC, Redlands CA
2
2002 Land Use Land Cover GIS Data

• Digital LULC Mapping by NJDEP began in the mid
  1980s.
• The NJDEP has completed statewide LULC mapping
  for 1986 and 1995.
• 2002 LULC is due for completion by Aug 2006.
• LULC mapping edits data from previous years and
  allows users to easily identify
• land use change,
• development patterns,
• habitat fragmentation, etc.
• Digital downloads from the Department for 1986
  and 1995 LULC data has exceeded 15,000 over the
  past year.

3
Land Use / Land Cover Update Project

• 2002 Land Use / Land Cover Update
• same methodology as previous mapping
• statewide mapping at 1 acre minimum polygon
• added detail to forest categories
• estimated impervious surface at 5 increments
• LULC coding based on modified Anderson et al USGS
  1976
• maintain codes from 1986, 1995-97
• adding detail to Urban, Transportation, and
  Wetland categories
• estimating impervious surface at 5 increments
• incorporate 2002 hydrology update as part of the
  land use
• flag LULC change from lu95

4
Capture Land Use Change
1995 Somerset County
5
Improved Land Cover Interpretation Capability
2002 Somerset County
6
LULC Classification System Modified Anderson
et.al. USGS 1976
URBAN LANDS 1000 SERIES New Codes in
Red 1100 Residential 1110 Residential
(High Density or Multiple Dwelling) 1120 Reside
ntial (Single Unit, Medium Density) 1130 Reside
ntial (Single Unit, Low Density) 1140 Residenti
al (Rural, Single Unit) 1150 Mixed
Residential 1200 "Commercial and
Services" 1211 "Military Reservations" 1214
Former Military Indeterminate
Use 1300 "Industrial" 1400 "Transportation/Comm
unication/Utilities" 1410 Limited Access
Highways (All Roads) 1419 "Bridge over water
(???) 1440 Airports 1460 "Power
Facilities" 1461 Wetland Rights-of-Way (Modified
Natural Veg) (WETLANDS) 1462 "Rights-of-Way
(Modified/Developed) 1463 "Rights-of-Way
(Undeveloped - vegetated) Additional classes
for rights-of-way shall be added to distinguish
developed from undeveloped right-of-way - 2002.
1500 "Industrial and Commercial
Complexes" 1600 "Mixed Urban or Built-up
Land" 1700 "Other Urban or Built-up
Land" 1710 "Cemeteries" 1750 Managed
Wetland, in Maintained Lawn Green
space (WETLANDS) 1800 "Recreational
Land" 1804 "Community Recreation Facilities" -
Athletic Fields (Schools) 1810 "Stadium,
Theaters, Cultural Centers, and
Zoos" 1850 Managed Wetland, in Built-up
Maintained Rec Area (WETLANDS) AGRICULTURE
2000 SERIES 2100 "Cropland and
Pastureland" 2140 Agricultural Wetlands
(Modified - Upland Only) (WETLANDS) 2150
Former Agricultural Wetlands- Becoming
Shrubby not Built-up (WETLANDS) 2200 "Orchards,
Vineyards, Nurseries, Horticultural Areas, Sod
Farms" 2300 "Confined Feeding Operations" 2400 "
Other Agriculture"
7
FOREST 4000 SERIES 4100 Deciduous
Forest 4110 Deciduous Forest (10-50 Crown
Closure) 4120 Deciduous Forest (gt50 Crown
Closure) 4200 Coniferous Forest 4210 "Conif
erous Forest (10-50 Crown Closure) 4220 Conife
rous Forest (gt50 Crown Closure) 4230 Plantatio
n 4300 Mixed Forest 4311 Mixed Forest
(gt50 Coniferous with 10-50 Crown
Closure) 4312 Mixed Forest (gt50 Coniferous
with gt50 Crown Closure) 4321 Mixed Forest
(gt50 Deciduous with 10-50 Crown
Closure) 4322 Mixed Forest (gt50 Deciduous
with gt50 Crown Closure) 4400 Brushland/Shrub
land 4410 Old Field 4420 Deciduous
Brush/Shrubland 4430 Coniferous
Brush/Shrubland 4440 Mixed Deciduous/Coniferous
Brush/Shrubland 4500 Severe Burned Upland
Vegetation WATER 5000 SERIES 5100 "Streams
and Canals" 5200 "Natural Lakes" 5300 "Artifici
al Lakes and Reservoirs" 5400 "Bays, Estuaries
other Tidal Waters 5410 "Tidal Rivers, Inland
Bays and other Tidal Waters" 5411 Open Tidal
Bays 5420 "Dredged Lagoon" 5430 Atlantic
Ocean
8
WETLANDS 6000 SERIES 6100 "Coastal
Wetlands" 6110 "Saline Marshes" Additional
classes for Marshes - 2002 6111 Saline
Marshes (Low marsh vegetation - Spartina
alterniflora dominated) 6112 Saline Marshes
(High marsh vegetation - Spartina patens
dominated) 6XXX Phragmites
australis dominated (???) 6120 "Freshwater Tidal
Marshes" 6130 "Vegetated Dune Communities" 6200
"Interior Wetlands" 6210 "Deciduous Wooded
Wetlands" 6220 "Coniferous Wooded Wetlands"
6221 "Atlantic White Cedar Wetlands 6230 "Brush
-Dominate and Bog Wetlands" 6231 Deciduous
Scrub/Shrub Wetlands 6232 Coniferous
Scrub/Shrub Wetlands 6233 Mixed Scrub/Shrub
Wetlands (Deciduous Dom.) 6234 Mixed
Scrub/Shrub Wetlands (Coniferous
Dom.) 6240 "Herbaceous Wetlands"
(Non-Tidal) 6250 "Mixed Wooded
Wetlands" 6251 Mixed Forested Wetlands
(Deciduous Dom.) 6252 Mixed Forested Wetlands
(Coniferous Dom.) 6500 Severe Burned
Wetlands BARREN LANDS 7000 SERIES
7100 "Beaches" 7200 "Bare Exposed Rock, Rock
Slides, etc." 7300 "Extractive
Mining" 7400 "Altered Lands" 7430 Disturbed
Wetlands (Modified) (WETLANDS) 7500 "Transition
al Areas" 7600 "Undifferentiated Barren Lands"
9
Forest Loss 1995 - 20023 Examples
10
Land Use 1995-2002 Green Brook Twp, Somerset
County
11
Land Use 1995-2002 Hopewell Twp, Mercer County
12
Land Use 1995-2002 Manalapan Twp, Monmouth County
13
Statistics of acreage Forest Change
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)
18
Hydrology Update

• 2002 Hydrology Update project objectives
• replace existing USGS DLG data
• base update on 2002 imagery
• create accurate Stream and Stream Bank data layer
  (arcs)
• create Water Body data layer (polygonal)
• incorporate into LULC update

19

• Stream and Stream Bank data layer (arcs)
• The minimum mapping width for linear streams is
  10 feet
• Streams greater than 10 feet but less than 30
  feet in width shall be delineated as a single
  line
• All single line stream will have direction
  (upstream/downstream analysis)
• Streams greater than 30 feet in width will be
  captured as polygons.
• For all polygonal streams, an artificial stream
  centerline (drainage path) will be digitized down
  the approximate middle of the polygon, with the
  correct arc/node topology that can be related to
  upstream and downstream flow direction analysis
• Explore NHD compliancy

20

• Water Body data layer (polygonal)
• The minimum mapping unit for non-linear water
  bodies is 1-acre
• The minimum width for capturing linear water
  bodies as polygons is 30 feet
• Water bodies captured as polygons will be
  delineated within /- 5 feet of the land-water
  interface as interpreted on the 2002 imagery
• Water polygons will be delivered as separate
  layer
• Incorporate into the 2002 LU/LC, replacing the
  existing 1995/97 water body delineation and code
  for the appropriately LU/LC water class. Where
  discrepancies are small, it will be mapped as a
  correction, not as an actual land use change
• NJDEP will provide lake name file to join tables

21
Red - Current Surface Water
22
Blue - New Streams
23
Red - Current Surface Water
Blue - New Streams
24
Red - Current Lakes Surface Water
25
Blue - New Lakes Streams
26
Incorporate Hydrology into Land Use/Land Cover
1 - River/Stream Polygons (LU02 5100) 2 -
Natural Lake (LU02 5200) 3 - Artificial Lake
(LU02 5300) 4 - Tidal (LU02 54XX)
27
Water 1995 SWQS
28
New Streams with Flow Direction
29
Trace Flow Downstream
30
Solve Trace Task Flag to Barrier
31
(No Transcript)
32
Detailed Land Use Land Cover is Critical for

• Smart Growth Applications
• Protecting Endangered Species Habitat
• Documenting Trends
• Protecting Environmental Sensitive Areas
• Runoff and Watershed Models
• Stream Corridor Protection and Restoration
• Enforcement of Wetlands Regulations (Targeting)
• New Business Portal

33
(No Transcript)
34
(No Transcript)
35
Thank You !! Emaillawrence.thornton_at_dep.state.nj
.us Website www.nj.gov/dep/gis Slides
http//www.nj.gov/dep/gis/linksnew.htmlmiscell
New Jersey Department of Environmental Protection
(NJDEP) Office of Information Resources
Management (OIRM) Bureau of Geographic
Information Systems (BGIS)