Publicly accessible data on the size and location of all existing parks, recreational facilities, open space and natural areas was collected through collaboration between the Departments of Parks and Recreation with 86 cities to complete a countywide inventory of existing parks. A total of 3,023 parks were inventoried countywide.

2015 Incorporated Cities and Unincorporated Area Greenhouse Gas Inventory (GPC Compliant)

2015 Incorporated Cities and Unincorporated Area Greenhouse Gas Inventory (GPC Compliant)

2015 Incorporated Cities and Unincorporated Area Greenhouse Gas Inventory (GPC Compliant)

Fire perimeter data describes wildfire history from CAL FIRE (including timber fires 10 acres or greater, brush fires 30 acres and greater, and grass fires 300 acres or greater) and US Forest Service (10-acre minimum for fires since 1950). The fire perimeters dataset contains separate polygons for each burn occurrence. Fire frequency data for 2000-2016 was pulled directly from CalFire annual reports. CalFire data for 2017 and 2018 was compiled using their ongoing reporting of large fires.

Species were identified that currently occur in LA County and are listed as endangered, threatened based on the Endangered Species Act. The list for all species came from searching the United States Fish and Wildlife Service (USFWS) 5-year plans by county (Los Angeles), which directs you to a table of the currently listed species. Species counts were determined from 2018 data on iNaturalist. Current statuses were confirmed using online databases of species records, including eBird and iNaturalist for vertebrates, the Consortium of California Herbaria for plants, and UCLA experts.

Species count sourced from 2018 iNaturalist for each taxa group using the following specifications:
o Quality = Research
o Reviewed = Any
o Identifications = Most Agree
o Captive/Cultivated = No
o Place = Los Angeles County
• Species were identified that currently occur in LA County and are listed as endangered, threatened based on the Endangered Species Act. The list for all species came from searching the United States Fish and Wildlife Service (USFWS) 5-year plans by county (Los Angeles), which directs you to a table of the currently listed species.
• Current statuses were confirmed using online databases of species records, including eBird and iNaturalist for vertebrates, the Consortium of California Herbaria for plants, and UCLA experts.

Emissions from passenger vehicles and trucks are estimated based on VMT by vehicle type. VMT for each jurisdiction is estimated using trip-based travel forecasting models developed by Southern California Association of Governments (SCAG). SCAG’s regional travel demand model analyzes transportation network and socioeconomic data such as population, household, and employment, to forecast daily vehicle trips for each traffic
analysis zone (TAZ). Model outputs include:
• Vehicle trips by type: including cars, light trucks, medium duty trucks, heavy duty trucks, and transit vehicles
• Vehicle trip lengths by trip purpose
• Vehicle trip origins and destinations

Based on vehicle trips analysis, VMT calculations are performed for all cities within LA County (except for the City of Avalon), including unincorporated areas that are under direct County control. Using CARB Emissions Factors (EMFAC) model, CO2 and N2O emissions are estimated by multiplying emissions rates with vehicle activity data in all cities and unincorporated areas within the South Coast (SC) sub-area and the Mojave Desert (MD) sub-area. Sub-area emissions are then disaggregated based on speed bin by time of day and vehicle profile to estimate GHG emissions from into passenger vehicle and heavy duty trucks.

Emissions from passenger vehicles and trucks are estimated based on VMT by vehicle type. VMT for each jurisdiction is estimated using trip-based travel forecasting models developed by Southern California Association of Governments (SCAG). SCAG’s regional travel demand model analyzes transportation network and socioeconomic data such as population, household, and employment, to forecast daily vehicle trips for each traffic
analysis zone (TAZ). Model outputs include:
• Vehicle trips by type: including cars, light trucks, medium duty trucks, heavy duty trucks, and transit vehicles
• Vehicle trip lengths by trip purpose
• Vehicle trip origins and destinations

Based on vehicle trips analysis, VMT calculations are performed for all cities within LA County (except for the City of Avalon), including unincorporated areas that are under direct County control. Using CARB Emissions Factors (EMFAC) model, CO2 and N2O emissions are estimated by multiplying emissions rates with vehicle activity data in all cities and unincorporated areas within the South Coast (SC) sub-area and the Mojave Desert (MD) sub-area. Sub-area emissions are then disaggregated based on speed bin by time of day and vehicle profile to estimate GHG emissions from into passenger vehicle and heavy duty trucks.

UCLA Energy Atlas