Environmental Atlas of the Lake Pontchartrain Basin

Table of Contents

Introduction
Introduction
Acknowledgements

Environmental Overview
Satellite Image of the Lake Pontchartrain Basin
Regional Description of Lake Pontchartrain Basin

Environmental Status and Trends
  Status and Trends of the Lake Pontchartrain Basin

Restoration
  Restoration of the Lake Pontchartrain Basin

Physical Environments
Climate
  Introduction
  New Orleans Climate History 1954-2000
  Baton Rouge Climate History 1960-2000
  Covington Climate History 1930-2000
  Plaquemines Climate History 1960-2000
  Buras Climate History 1948-2000
  National Data Buoy Climate History 1981-1993

Hurricane History
  Recent Hurricanes Producing Significant Basin Damage
  Tropical Cyclones of the Louisiana Coast:
    1900-1939
    1940-1979
    1980-1999

Circulation
  Introduction
  Processes of Lake Pontchartrain Circulation
  Wind-induced Lake Circulation Patterns (N, S, E, W)
  Wind-induced Lake Circulation Patterns (NW, NE, SW, SE)

Wave Climate
  Long-Term Near-Bottom Velocity in Lake Pontchartrain
  Wave Climate of the Northern Gulf of Mexico
  Wave Climate of the Central Gulf of Mexico

Relative Sea Level
  Mean Sea Level Rise in Lake Pontchartrain

Relative Sea Level Rise
  Regional Long-Term Relative Sea Level Rise Rates

Basin Geology
Geology
  Introduction
  Geologic Map of the Lake Pontchartrain Basin
  Geologic Setting of the Big Branch Shoreline

Quarternary Framework
  Physical Characteristics of Recent Sediments
  Recent Stratigraphy of Lake Pontchartrain
  Subsurface Geological Features
  Modern Sediments of the Mississippi River Deltaic Plain
  Baton Rouge - Denham Springs Fault System, Lake Pontchartrain

Geomorphology
  Shoreline Types of the Lake Pontchartrain Basin - Summary
  Shoreline Types of:
    Lake Maurepas
    Pass Manchac
    Lake Pontchartrain - Southwest Shore
    Lake Pontchartrain - Southeast Shore
    Lake Pontchartrain - North Shore
    Lake Borgne

Bathymetry
  Bathymetric Map of Lake Pontchartrain, Louisiana
  Bathymetry of South Shore Lake Pontchartrain, Louisiana

Geologic Resources
  Freshwater Inflows to the Lake Pontchartrain System
  Ground Water Resources of:
    Chicot Equivalent Aquifers
    Evangeline Equivalent Aquifers
    Jasper Equivalent Aquifers
    Aggregate Mines of the Lake Pontchartrain Basin

Biological Resources
Habitat Inventory
  Lake Pontchartrain Basin - Land Use/Land Cover

Estuarine Living Marine Resources (ELMR)
  Introduction
  Abundance of ELMR Species in the Gulf of Mexico Estuaries
  Temporal Distribution of ELMR Species in Mississippi Sound, Lake Borgne and Lake Pontchartrain
  Temporal Distribution of ELMR Species in Mississippi River and Breton/Chandeleur Sounds Estuaries
  Spatial Distribution of ELMR Species in Mississippi Sound, Lake Borgne and Lake Pontchartrain
  Spatial Distribution of ELMR Species in Mississippi River and Breton/Chandeleur Sounds Estuaries
  Biological Resources at Risk
  Biological Resources Index Map
  Biological Resources of:
    Pass Manchac Region
    Madisonville Region
    Slidell Region
    Lower Pearl River Region
    Rigolets Region
    Half Moon Island Region
    Isle au Pitre Region
    Bayou LaBranche Region
    New Orleans Lakefront
    Martello Castle Region
    Shell Beach Region
    Comfort Island Region
    Oak River Region
    Bayou Terre aux Boeufs
    Gardner Island Region
    Black Bay
    Breton Sound
    Baptiste Collette Region
    Northeastern Balize Delta
    South Pass
    North Chandeleur Islands
    South Chandeleur Islands
    Gosier and Breton Islands

Essential Fisheries Habitat (EFH) of:
  Introduction
  Lake Pontchartrain, Brown and Pink Shrimp
  Lake Pontchartrain, White Shrimp and Gulf Shore Crab
  Lake Pontchartrain, Spanish Mackerel and Spiny Lobster
  Lake Pontchartrain, Gray Snapper and Red Drum
  Breton Sound, Brown and Pink Shrimp
  Breton Sound, White Shrimp and Gulf Shore Crab
  Breton Sound, Spanish Mackerel and Spiny Lobster
  Breton Sound, Gray Snapper and Red Drum
  Mississippi River, Brown and Pink Shrimp
  Mississippi River, White Shrimp and Gulf Shore Crab
  Mississippi River, Spanish Mackerel and Spiny Lobster
  Mississippi River, Gray Snapper and Red Drum

Submersed Aquatic Vegetation
  Spillway, Hurricane, and Drought Effects on SAV (Grassbeds)
  Recent Resurgence of Submersed Aquatic Vegetation

Environmental Issues
Coastal Land Loss
  Pontchartrain Basin Land Loss - Description
  Existing and Predicted Land Loss Trends 1596 - 2050
  Pontchartrain Basin Land Loss - Morphologic Classification
  Pontchartrain Basin Land Loss - Process Classification

Shoreline Change and Shoreline Change Rates
  Shoreline Changes of Lake Maurepas
  Shoreline Change Rates of Lake Maurepas
  Shoreline Changes of Northern Lake Pontchartrain
  Shoreline Change Rates of Northern Lake Pontchartrain
  Shoreline Changes of Southern Lake Pontchartrain
  Shoreline Change Rates of Southern Lake Pontchartrain
  Shoreline Changes of Lake Borgne
  Shoreline Change Rates of Lake Borgne
  Shoreline Changes of the Northern Chandeleur Islands
  Gulfside Shoreline Change Rates of the Northern Chandeleur Islands
  Bayside Shoreline Change Rates of the Northern Chandeleur Islands
  Shoreline Changes of the Southern Chandeleur Islands
  Gulfside Shoreline Change Rates of the Southern Chandeleur Islands
  Bayside Shoreline Change Rates of the Southern Chandeleur Islands

Urbanization
  Population Character of the Lake Pontchartrain Basin
  Agricultural Character of the Lake Pontchartrain Basin

Aggregate Dredge Holes
  Lake Pontchartrain Dredge Pit Bathymetry
    LaBranche
    Inner Harbor Navigation Canal
    Airport
    South Point
    Dredge Pit Characterization

Bonnet Carré Diversion: March 17 - April 18, 1997
  Satellite Imagery of the 1997 Bonnet Carré Spillway Opening
  Lake Circulation Patterns - Bonnet Carré 1997 Opening
  Bonnet Carré and Pearl River Salinity Impact Models

Water Quality
  Nutrient Analysis of Rainwater in an Urban Area (Orleans Parish)
  Inner Harbor Navigation Canal
  Inner Harbor Navigation Canal: Velocity Profile and Water Quality
  Bottom Dissolved Oxygen and Salinity in Lake Pontchartrain
  Lake Pontchartrain: Urban Stormwater Discharges on South Shore
  Lake Pontchartrain South Shore: General Water Quality
  Lake Pontchartrain South Shore: Recreational Use Risk Assessment
  Lake Pontchartrain South Shore: Pathogens and Urban Stormwater
  Recent Trends in Water Clarity and Clam Abundance
  Rangia Clams as an Indicator of Hypoxia in Lake Pontchartrain
  Nitrogen Loading into Lake Pontchartrain

Sediment Quality and Dispersal
  Trace Metal Distribution in Surficial Sediments
  Sediment Geochemistry: Aluminum
  Sediment Geochemistry: Silicon
  Sediment Geochemistry: Magnesium and Trace Elements

Bibliography
  References

Agency Resources
  Agencies and Organizations
  Agencies and Organizations Websites

Contributors
  Contributors