Priority Conservation Areas (PCAs) Refresh
The PCA program has existed without significant updates since 2007. The existing framework has been flexible, allowing local PCA nominations to occur anywhere in the region and claim any PCA type designation. The PCA Refresh was a 2 year effort (2022-2024) to consider possible reforms to the program. The Refresh began by identifying the strengths and weaknesses of the existing PCA Framework, identified a vision, objectives, and goals for a future PCA 2.0 Framework, and then developed responsive reforms.
As described above the project had three phases, (i) identify strengths and weaknesses of the existing PCA Framework, (ii) identify a vision, objective, and goals for the PCA 2.0 Framework, and (iii) develop responsive reforms. The integration of scientific data was part of each phase, helping vet existing PCAs and consider how data could help inform new ones. In particular the PCA 2.0 Objectives were the basis for identifying over 30 datasets to bring into a data framework. Those datasets were then processed individually and processed together to develop new mapping data to generate PCA 2.0 specific datasets and mapping products. The PCA Refresh resulted in two novel data outputs:
- PCA Type Eligibility Maps
- Draft Regionally-Identified PCA Maps
The methodology documentation below describes the process for developing each -- with the Regionally-Identified PCA Maps leveraging the structure used for the Eligibilty Maps
- The Refresh Final Report and Onling Mapping Viewer are available on both the MTC PCA webpage and ABAG PCA webpage.
- For those interested in specific methodology documentation the following locations are helpful
- For external users, a Summary documentation of the PCA types is described on this GitHub page, but is most suscinctly summarized in this 2-page document which includes PCA type information on the description, objectives, datasets, primary benefits and co-benefits.
- For external users particularly interested in the datasets this excel file provides additional detail on source data used to create the eligibility maps.
- The PCA Refresh geographic data is available via MTC's ArcGIS online account. Below are direct links to specific mapping files:
- Natural Lands PCA Type Eligibility Layer
- Working Lands PCA Type Eligibility Layer
- Urban Greening PCA Type Eligibility Layer
- Recreation PCA Type Eligibility Layer
- Climate Adaptation PCA Type Eligibility Layer
- Regionally-Identified Natural Lands PCA Layer
- Regionally-Identified Working Lands PCA Layer
- Regionally-Identified Urban Greening PCA Layer
- Regionally-Identified Recreation PCA Layer
- Regionally-Identified Climate Adaptation PCA Layer
- For MTCABAG staff, full written project details are provided in the PCA Refresh project Box Folder. Contact Michael Germeraad, [email protected] for access.
At the core of the project was the development of 5 PCA eligibility maps. One map for each PCA type: Natural Lands, Working Lands, Urban Greening, Regional Recreation, and Climate Adaptation. To create these key final products many other interim, objective-level datasets were created, which were built on over 30+ raw datasets that had been individually processed.
The data methodology was built off of written objective statements for each PCA type that were vetted by stakeholders and the project Technical Advisory Committee to craft objective statements for each PCA type. The objective statements set the specific goals for each PCA typel. See the bulleted list below for the 2-4 objective statements for each PCA type. These statements were the starting point to then bring data into the PCA Refresh. For each objective statement at least one dataset with coverage across the nine county region was collected and integrated into the Framework. Most objectives are associated with a single dataset, while others bring multiple datasets together (e.g. NL2 brings six datasets together, the most of any objective).
Natural Lands (NL)
- NL1: Protect a full representation of the Bay Area’s habitats in robust amounts to ensure long-term resilience of the region’s biodiversity.
- NL2: Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas.
- NL3: Maintain and enhance wildlife corridors and habitat connectivity.
Working Lands (WL)
- WL1: Protect important farmland, grazing land, and timber land to support the Bay Area agricultural economy and access to locally- and community-grown food.
- WL2: Maintain areas of high carbon stock and enhance low-carbon stock areas with multi-benefit management.
Urban Greening (UG)
- UG1: Expand tree cover in urban areas with limited shade, particularly in equity priority communities.
- UG2: Expand green infrastructure particularly in areas with low surface permeability or other stormwater management issues.
- UG3: Enhance urban creeks to provide improved ecological, recreational, and resilience functions.
- UG4-EQ: Prioritize urban greening areas within 1/2-mile radius of EPC and areas with high pollution burden.
Recreation (R)
- R1: Complete and enhance access to the Regional Trails Network.
- R2: Create new and enhance existing local parks, particularly in Equity Priority Communities and areas with limited access to outdoor recreation.
- R3-EQ: Prioritize regional recreation areas within 1/2-mile radius of EPC.
Climate Adaptation (CA)
- CA1: Prepare areas that provide habitat migration opportunities, particularly for marsh and other shoreline systems when sea levels rise, and extreme precipitation events become more frequent.
- CA2: Manage very high fire risk to reduce the intensity and spread potential for future wildfires.
- CA3: Enhance areas that provide cooling experiences in areas experiencing extreme heat.
The process to go from the above 15 objective statements to PCA Eligibility Maps is illustrated in the three figures below. The steps illustrated in the figures are then described in greater detail.
- Figure 1 outlines the overall process to develop Objective Maps (15) and Eligibility Maps (5).
- Figure 2 outlines in greater detail how steps 1 and 2 occur to produce a generic Objective Map and generic PCA Elgibility Map.
- Figure 3 provides additional detail on how the geographic extent of the eligibility maps are influenced by city limits and urban growth boundaries.
FIGURE 3 - Geographic Extent of PCAs informed by City Limits/UGBs (the pink elements described in Figures 1 and 2.
*Eligible Natural Lands are inclusive of tidal areas (e.g. tidal wetlands, polder management, and non-urbanized upland migration areas.)
**Where Urban Growth Boundaries exist, they are used; elsewhere, City limits are used. In some rare cases, Urban Service Limits are used.
Starting with the objective statements, the project team worked to identify, collect, and match available datasets to each objective. The Reference Data Table below provides a summary of all the data included, as well as which objective it was paired with. To be considered, the dataset had to span all nine counties and when multiple datasets of similar types were available, government or science-based organizations were selected. After matching data to each objective they were individually processed.
This process was repeated for all 28 original datasets.
Some data had no processing. The original dataset was already clipped to the nine county Bay Area, and the attribute values could be used directly. In other cases the extent of the dataset was clipped to the nine county region, and additional attribute specific processing was completed. For example, for the tree canopy data layer that informs Urban Greening Objective 1 (UG1) the dataset had an attribute that measured tree canopy as a percentage of land cover. The project team selected a single cut off point of significance to identify areas where additional tree cover would be beneficial. For each dataset, the processing resulted in a binary data layer, with locations either in or out, with the project team making a determination on which attributes or combination of attributes in a data layer were to be included. This information is also captured in the Reference Data Table, under column Indicator Threshold Notes.
This process was repeated for all 28 original datasets.
After processing data individually the datasets were used to create objective specific maps. In cases where a single data layer was used for the objective, there was no new geoprocessing or filtering actions. In cases where two or more datasets were used to identify an objective they were combined, with the union of their combination taken – an area of land only needed to meet one condition to be included.
This process integrated the 28 processed datasets into 15 objective maps.
The final stage is nearly identical to Stage 3. The objective specific maps are combined together in the same process – again, areas only needed to meet one objective to be included in the eligibility map.
This process integrated the 15 objective maps into 5 PCA Eligibility Maps, the final product of the methodology.
In addition to using data to set eligibility for where PCAs were appropriate, other land cover and jurisdiction boundaries were used to clip eligibility.
In the case of Natural Land and Working Land PCA types, their boundaries were clipped to outside City Limits/Urban Growth Boundaries/Urban Service Limit Lines. Similarly, the inverse was used to keep only areas inside cities eligible for Urban Greening. Refer to Figure 3 for this breakdown by PCA type. In addition to using City Limits/Urban Growth Boundaries/Urban Service Limit Lines the Natural Land PCA type had additional nuance added. This was done recognizing that most shoreline jurisdictions have their city boundaries extend to the shoreline edge, or into the Bay water feature. The PCA Refresh Project Team developed a nuanced approach for Natural Land PCA Eligibility that allowed for areas to be identified inside city limits along the shoreline. Areas identified by data included in Objective NL2 that did not overlap with existing urban areas, nor MTC/ABAG growth geographies were included. Existing growth geographies as well as FMMP Urbanized layers ensured that these Natural Land areas within City Limits/Urban Growth Boundaries/Urban Service Limit Lines were not overlapping with areas where there could be conflict. Importantly, this adjustment for Natural Land enabled large areas of marshland to be eligible for the Natural Land designation. The Reference Data Table has more detail on how this “masking” was done -- see the rows titled "Urban Non-Tidal Mask".
The above methodology outlines how the five PCA Type Eligibility Maps were produced as well as the building block elements that form their basis. Those same datasets used to create the Eligibility Maps were also used as the basis for developing Draft Regionally-Identified PCAs, another data product of the PCA Refresh.
Regionally-Identified PCA Maps will be used as a complement to local nominations. They aim to identify areas that may not be identified by local governments, but have regionally significant, or more importantly, regionally-connective values. To generate these maps, the same datasets used to create the Eligibility Maps were used. Below is the detail of which components were leveraged.
- Draft Regionally-Identified Natural Lands is the intersection of components of Natural Lands Objective 1 and Natural Lands Objective 2 and Natural Land Objective 3 datasets. It is the intersection of { (a) critical linkages OR (b) stream conservation targets } AND { (c) essential lands }. It identifies wildlife corridors and priority streams in the region that coincide with highly rated habitats.
- Draft Regionally-Identified Working Lands identify a subset of (a) farmland within 2 miles of the urban edge. A buffer was used to generate this map, using the City Limit/Urban Growth Boundary/Urban Service Limit Line used elsewhere in the Framework. Farmland of "Prime, State, Local, and Unique" significance were used.
- Draft Regionally-Identified Urban Greening identify any { (a) urban greening eligible areas } AND { (b) equity priority communities }. This approach lifts up any urban greening opportunity within EPCs.
- Draft Regionally-Identified Recreation is the Recreation Objective 1 map with no additional processing.
- Draft Regionally-Identified Climate Adaptation is the intersection of Climate Adaptation Objective 1 and elements of Natural Land Objective 2. This is the intersection of areas that are within { (a) 4.9’ feet of sea level rise, or (b) FEMA 100 year flood } and {(c) marsh suitability, (d) polder management, (e) tidal marsh, (f) stream conservation targets}.
These maps are anticipated to remain in draft form until Fall 2024 when the ABAG Executive Board will be asked to formally adopt them ahead of a future PCA nomination cycle.
| PCA_Type | Objective | PCA_Type_Description_Text_Long | Indicator_Dataset | Indicator_Threshold_Notes | Indicator Layer Name | Indicator Source Dataset Name | MG detailed planning analysis needs? | AGOL? (MTC or other) | Available for Download? (Yes, where; No, where) | If yes, Source/Download link | MTC to Upload (Yes or No) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Natural Land | NL1 | Protect a full representation of the Bay Area’s habitats in robust amounts to ensure long-term resilience of the region’s biodiversity. | Essential Lands (CLN 2.0) | "Essential"; "Important" | NL_EssentialandImportant | cln2_final_2019_dissolved | Full Dataset | No | Yes | bayarealands.org | |
| Natural Land | NL1 | Protect a full representation of the Bay Area’s habitats in robust amounts to ensure long-term resilience of the region’s biodiversity. | Resilience Sites (TNC) | Class 12 “More Resilient,” Class 13 “Slightly More Resilient,” Class 14 “Priority Coastal Marsh Migration Space” | NL_HighResilienceLands | Resilient_Sites_Terrand_Coast | Limited Okay | No | Yes | conservationgateway.org | |
| Natural Land | NL1 | Protect a full representation of the Bay Area’s habitats in robust amounts to ensure long-term resilience of the region’s biodiversity. | Areas of Conservation Emphasis (CDFW) - Terrestrial Significant Habitats Summary [ds2721] | Score >=4 | NL_SignificantHabitat | TerresSigHabitat_ACE_Summary_Datasets_ds2721 | Limited Okay | No | Yes | wildlife.ca.gov | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Stream Conservation Targets (CLN 2.0) | Stream Priority 1&2 - 200ft buffer | NL_PriorityStreams | cln2_final_stream_targets | Full Dataset | No | Yes | bayarealands.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Soil Agricultural Groundwater Banking Index (UC Davis) | [rat_grp]= "Excellent"; "Good"; "Moderately Good" | NL_GroundwaterBanking | sagbi_GroundWaterBanking_mod | Limited Okay | No | Michael to check | ||
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Marsh Suitability, Adaptation Atlas (SFEI, 2021) | "Migration Space Preparation" protected and unprotected | NL_Migration_space_preparation | SFEI_Tidal_marshes | Limited Okay | No | Yes | sfei.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Polder Management, Adaptation Atlas (SFEI, 2021) | All areas | NL_Polder_management | SFEI_Polder_management | Limited Okay | No | Yes | sfei.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Tidal Marsh, Adaptation Atlas (SFEI, 2021) | Existing and potential tidal marshes | NL_Tidal_marshes | SFEI_Migration_space_preparation | Limited Okay | No | Yes | sfei.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Tidal Marsh, Adaptation Atlas (SFEI, 2021) | Existing and potential tidal marshes | NL_Tidal_marshes | SFEI_Migration_space_preparation | Limited Okay | No | Yes | sfei.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Tidal Marsh, Adaptation Atlas (SFEI, 2021) | Existing and potential tidal marshes | NL_Tidal_marshes | SFEI_Migration_space_preparation | Limited Okay | No | Yes | sfei.org | |
| Natural Land | NL2 | Enhance watersheds including priority stream corridors, wetlands, and groundwater recharge areas. | Fish Passage Assessment Database (Caltrans, 2021) | All points - 200 feet Buffer | NL_FishPassage | Fish_Passage_Assessment_Database_ds69 | Limited Okay | PAD (Passage Assessment Database) | Yes | calfish.org | |
| Natural Land | NL3 | Maintain and enhance wildlife corridors and habitat connectivity. | Bay Area Critical Linkages (CLN 2.0) | “Critical Linkages Design” Shapefile | NL_CriticalBayLinkagesOnly | cln2_final_Linkage_Designs | Limited Okay | No | Yes | bayarealands.org | |
| Natural Land | NL3 | Maintain and enhance wildlife corridors and habitat connectivity. | Wildlife Movement Barrier Priorities (CDFW - 2022 [ds3025])_ | 200 feet buffer, all segments | NL_MovementBarrier | Wildlife_Movement_Barrier_Priorities_ds3025 | Limited Okay | No | Yes | data.cnra.ca.gov | |
| Natural Land | MASK MTC NON-TIDAL, URBAN AREA FOR ALL NATURAL LANDS | ||||||||||
| Natural Land | Urban Non-Tidal Mask | Used to exclude urban, non-tidal areas from Natural Land PCA designation. | MTC Urban Area | It uses UGBs where we are aware of them and then rounds out the coverage with city limits, urban service limits, and a combined Census and FMMP approach for a few unincorporated county areas. | |||||||
| Natural Land | Urban Non-Tidal Mask | (Adjusted MTC Urban Area edges by removing all tidal zones indicated in NL2 but outside of the SFEI-defined "development areas" (See the San Francisco Bay Shoreline Adaptation Atlas (2019) report for more details.) and MTC growth geographies | Marsh Suitability, Adaptation Atlas (SFEI, 2021) | "Migration Space Preparation" protected and unprotected | |||||||
| Natural Land | Urban Non-Tidal Mask | Polder Management, Adaptation Atlas (SFEI, 2021) | All areas | ||||||||
| Natural Land | Urban Non-Tidal Mask | Tidal Marsh, Adaptation Atlas (SFEI, 2021) | Existing and potential tidal marshes | ||||||||
| Natural Land | Urban Non-Tidal Mask | Development Areas | Low, Medium and High Developed Land Cover (NLCD, 2021) excluding Wetlands and Baylands (BAARI v2.1) .... also used by San Francisco Bay Shoreline Adaptation Atlas | ||||||||
| Natural Land | Urban Non-Tidal Mask | MTC Growth Geographies | Priority Development Areas, Priority Production Areas, TOC Bus HRA, TOC HRA, TOC busoutsidehra Merge, High-Resource Area with Basic Bus Service | ||||||||
| Natural Land | Regional NL | Emphasizes areas that advance regional biodiversity connectivity by identifying essential habitats that coincide with wildlife corridors as well as priority streams which are likely to be the most adaptable portions of our region as streams will help regulate the change in temperature and offer refuge. | Essential Lands (CLN 2.0) | "Essential"; "Important" | |||||||
| Natural Land | Regional NL | (Essential Lands that intersect with Critical Linkage OR Priority Streams outside of MTC urban, non-tidal areas). | Bay Area Critical Linkages (CLN 2.0) | “Critical Linkages Design” Shapefile | |||||||
| Natural Land | Regional NL | Stream Conservation Targets (CLN 2.0) | Stream Priority 1&2 - 200ft buffer | ||||||||
| Working Lands / Agriculture | WL1 | Protect important farmland, grazing land, and timber land to support the Bay Area agricultural economy and access to locally- and community-grown food. | Farmland: Prime (P), State(S), Local(L), Unique(U) Importance (FMMP) | Attribute = "P,S,L,U" | WL_ImportantFarmland | farmland_mapping_and_monitoring_program | Limited Okay | MTC | |||
| Working Lands / Agriculture | WL1 | Protect important farmland, grazing land, and timber land to support the Bay Area agricultural economy and access to locally- and community-grown food. | Grazing Lands (FMMP, 2018) | Attribute = "G" | WL_Grazingland | farmland_mapping_and_monitoring_program | Limited Okay | MTC | |||
| Working Lands / Agriculture | WL2 | Maintain areas of high carbon stock and enhance low-carbon stock areas with multi-benefit management to support carbon sequestration. | Existing Carbon Stock (Greenprint) | Cell value >= 0.8 (metric ton) | WL_HighCarbonStock | carbonstock.tif | Limited Okay | No | No (Provided by Greenprint) | ||
| Working Lands / Agriculture | MASK MTC URBAN AREA FOR ALL WORKING LANDS | ||||||||||
| Working Lands / Agriculture | Urban Mask | Used to exclude urban areas from Working Land PCA designation | MTC Urban Area | It uses UGBs where we are aware of them and then rounds out the coverage with city limits, urban service limits, and a combined Census and FMMP approach for a few unincorporated county areas. | |||||||
| Working Lands / Agriculture | Regional WL | Identify prime agricultural lands that are nearest urban growth boundaries and city limits. Lifting up these lands emphasizes key agricultural lands that are likely the most at risk to change. | Farmland: Prime (P), State(S), Local(L), Unique(U) Importance (FMMP) | Attribute = "P,S,L,U" | |||||||
| Working Lands / Agriculture | Regional WL | (Important Farmland excluding but within a 2 mi buffer of the MTC Urban Area.) | MTC Urban Area | It uses UGBs where we are aware of them and then rounds out the coverage with city limits, urban service limits, and a combined Census and FMMP approach for a few unincorporated county areas. | |||||||
| Recreation | RR1 | Complete and enhance access to the Regional Trails Network. | Regional Trail Network (BATC/MTC) | 1/2 mile buffer around all trails | RegionalRecreationObj1 | batc_network via AGOL | Limited Okay | MTC | |||
| Recreation | RR2 | Create new and enhance existing local parks, particularly in areas with limited access to outdoor recreation. | Areas of High Park Need (TPL Park Serve) | All "Park Priority Area" Polygons | RR_HighParkNeed | ParkServe_ParkPriorityAreas | Limited Okay | TPL | Yes | www.tpl.org | |
| Recreation | RR2 | Create new and enhance existing local parks, particularly in areas with limited access to outdoor recreation. | Park Deserts (WRT created layer via CPAD) | Locations outside of a half mile walking distance from CPAD "Open Access" park center points in "MTC urban areas". | RR_ParkDesert_UrbanOnly | CPAD_2022a_Units | Limited Okay | MTC | |||
| Recreation | RR3 | Prioritize recreation areas within 1/2 mile radius of EPC. | Equity Priority Communities (MTC) | 1/2 mile buffer around EPCs (only where overlaps other objectives) | RR_EPC_halfmiSurroundings_withinRR | MTC_EquityPriorityCommunity | Limited Okay | MTC | |||
| Recreation | Regional RR | Emphasizes regional trails to ensure coverage throughout the region and unlock their connective potential. (Same as RR1) |
Regional Trail Network (BATC/MTC) | 1/2 mile buffer around all trails | |||||||
| Urban Greening | UG1 | Expand tree cover in urban areas with limited shade and vegetation. | Tree Canopy (NLCD, 2021) | Less than 10% tree canopy within MTC urban areas, minus water and emergent wetlands | UrbanGreeningObj1 | nlcd_treecover2021.tif | Full Dataset | NLCD | Yes | mrlc.gov | |
| Urban Greening | UG2 | Expand green stormwater infrastructure projects particularly in areas with low surface permeability or other stormwater management issues in urban areas. | Impervious Surface (NLCD, 2021) | 75-100% Impervious as the indicator (clipped to MTC Urban areas) | UrbanGreeningObj2 | nlcd_2021_impervious_l48_20230630 | Limited Okay | NCLD | Yes | mrlc.gov | |
| Urban Greening | UG3 | Enhance urban creeks to provide improved ecological, recreational, and resilience functions. | Stream Conservation Targets (CLN 2.0) | Stream Priority 1&2 - 200ft buffer - Clipped to MTC Urban Areas | UrbanGreeningObj4 | cln2_final_stream_targets | Limited Okay | No | Yes | bayarealands.org | |
| Urban Greening | UG4 | Prioritize urban greening areas within 1/2-mile radius of EPCs and/or areas with high pollution burden. | Equity Priority Communities (MTC) | EPC (no buffer and only where overlaps other objectives) | UG_EquityPriorityComm_within_UG_Obj123 | MTC_EquityPriorityCommunity | Limited Okay | MTC | |||
| Urban Greening | UG4 | Prioritize urban greening areas within 1/2-mile radius of EPCs and/or areas with high pollution burden. | CalEnviroScreen 4.0 | Pollution Burden anything 75th percentile and above from Cal Environscreen (only where overlaps other objectives) | UG_PollutionBurden_within_UG_Obj123 | CalEnviroScreen4_Final_Shapefile | Limited Okay | MTC | |||
| Urban Greening | Regional UG | Emphasizes opportunities in Equity Priority Communities. Weaving more natural infrastructure into communities that have been under-invested in historically is an opportunity to bring the benefits of nature directly to more communities. | Equity Priority Communities (MTC) | EPC (no buffer and only where overlaps other objectives) | |||||||
| Urban Greening | Regional UG | (UG 4 without Cal Enviro). | Equity Priority Communities (MTC) | EPC (no buffer and only where overlaps other objectives) | |||||||
| Climate Adaptation (Hazard Areas) | CA1 | Enhance and prepare areas that provide habitat migration opportunities, particularly for marsh and other shoreline systems when sea levels rise, and extreme precipitation events become more frequent. | Flooding (FEMA) | FEMA 100 yr (AE) | CA_FEMA100yrfld | fema_nfhl_flood_zones | Limited Okay | MTC | |||
| Climate Adaptation (Hazard Areas) | CA1 | Enhance and prepare areas that provide habitat migration opportunities, particularly for marsh and other shoreline systems when sea levels rise, and extreme precipitation events become more frequent. | Sea Level Rise - 4.9' (MTC/BCDC) | SLR and Delta | CA_SeaLevelRise | Framework Shoreline Inventory: Delta Region | Limited Okay | MTC | |||
| Climate Adaptation (Hazard Areas) | CA1 | Enhance and prepare areas that provide habitat migration opportunities, particularly for marsh and other shoreline systems when sea levels rise, and extreme precipitation events become more frequent. | Sea Level Rise - 4.9' (MTC/BCDC) | SLR and Delta | CA_SeaLevelRise | Framework Shoreline Inventory: 4.9 ft TWL | MTC | ||||
| Climate Adaptation (Hazard Areas) | CA2 | Manage very high fire risk to reduce the intensity and spread potential for future wildfires. | Fire Hazard Severity Zone (CALFIRE, 2023 DRAFT) | high and very high | CA_FireHazard | FHSZSRA_23_2 | Limited Okay | No | Michael to check on Draft status | ||
| Climate Adaptation (Hazard Areas) | CA3 | Enhance areas that provide cooling experiences in areas experiencing extreme heat. | Extreme Heat (CalAdapt) | Urban Only 15 or more extreme heat days 2100 | CA_ExtremeHeat | exheat_year_ens32avg_rcp85_2100.tif | Limited Okay | CalAdapt | Yes | ||
| Climate Adaptation (Hazard Areas) | CA3 | Enhance areas that provide cooling experiences in areas experiencing extreme heat. | Urban Heat Island Effect (Greenprint/UC Berkeley) | Any F_Surface_Temp greater than or equal to 102F - within urban areas | CA_UrbanHeatIsland_102Fup | GreenPrint_UCB_Urban_Heat_Island | Limited Okay | No | No (Provided by Greenprint) | ||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Marsh Suitability, Adaptation Atlas (SFEI, 2021) | "Migration Space Preparation" protected and unprotected | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Polder Management, Adaptation Atlas (SFEI, 2021) | All areas | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Tidal Marsh, Adaptation Atlas (SFEI, 2021) | Existing and potential tidal marshes | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Stream Conservation Targets (CLN 2.0) | Stream Priority 1&2 - 200ft buffer | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
MTC Urban Non-Tidal Mask | See MTC Urban Non-tidal Mask definition in NL above. | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Flooding (FEMA) | FEMA 100 yr (AE) | |||||||
| Climate Adaptation (Hazard Areas) | Regional CA | Emphasizes unique biodiversity and habitat at risk of sea level rise. It identifies shoreline marshes and priority streams that are key habitats that require active investment to ensure their survival with climate change. (Overlap of shoreline marshes and priority streams outside of MTC urban, non-tidal areas with CA 1). |
Sea Level Rise - 4.9' (MTC/BCDC) | SLR and Delta |