Table 3.
Worksheet 1B apply category 2 design considerations: impacts of climate change on management actions | ||||||||
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B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | |
Action number | Existing management action | Changes in effectiveness of management action due to: climate impacts on target stressor | Changes in effectiveness of management action due to: climate impacts on management action | Time frame or constraint for using the action and implementation (e.g., urgency, longer or shorter term) | What changes are needed to adapt the action (place, time, and engineering design) | Climate-Smart Management Action | Notes | |
COLUMN DESCRIPTION | Transfer action numbers from Worksheet 1A. | Transfer management actions from Worksheet 1A (including any management actions identified because of Activity 2). | Describe how climate impacts on the stressor will change the effectiveness of the management action over its implementation and functional lifetime. Will the action be able to handle changes in the target stressor? | For actions that involve physical structures or elements, describe how climate change may directly impact the management action in ways that will change the effectiveness of the management action over its implementation and functional lifetime. Could the action be physically destroyed by climate change impacts? | Identify temporal considerations, including: (1) urgency due to anticipated time frame of climate change effects on the action and (2) short-term and long-term needs for planning and implementation of the action (including lead-time for design, permitting, construction, or other enabling conditions). | Describe the changes needed to adapt the design of the action in terms of place, time and engineering design. Be sure to review and consider the information from all previous columns including the Notes columns. | Revise the original management action (from Column B2) to incorporate the climate-smart design considerations. Be as specific as possible. | Make notes to: 1) Provide a transparent record of the thought process; 2) Identify knowledge gaps and research needs for better understanding climate impacts and design needs/changes in effectiveness of the action; 3) Record social or economic considerations for making adaptation design changes to the action; 4) Describe any other concerns or uncertainties relevant to adaptation design of the action. |
ILLUSTRATIVE GUÁNICA BAY RESULT | 1 | Establish coral nurseries | • Survival of nursery corals may be reduced due to increased smothering by sediment • Increased SST could bleach and kill nursery corals • Ocean acidification may reduce growth of nursery corals |
• Entire nurseries could be destroyed by large storms • Access to nurseries could be limited by an increase in stormy days |
• Urgent – huge loss of reefs | • Choose strains/clades that are resilient to high temperatures, ocean acidification, and land-based pollutants • Pipe to bring cooler water up to nursery area • Should add additional coral species, including Porites, Montastraea cavernosa, and Orbicella spp. • Design that allows nursery to be detached and moved in cases of storm events |
Establish coral nurseries with corals resilient to high temperatures, ocean acidification, and land-based pollutants. Use a wide range of species. Pipe cooler water from greater depths to nursery to prevent heat stress during potential bleaching periods. Nurseries should be movable to protect them from the increasingly frequent, large storms that are expected. | • Additional long-term benefit of shoreline protection if reefs were restored • Floating structures that do not affect existing habitats? • Need to know the minimal size of fragments to be successful • Research for intervention actions for nurseries during bleaching events • Also consider not releasing sewage or stormwater during elevated SST |
ILLUSTRATIVE WEST MAUI RESULT | 2 | Establish stormwater infiltration basins in urban areas to remove contaminants from stormwater and recharge ground water | • If higher flows, basins may not be able to contain stormwater • Effectiveness depends on changes in sediment load • Fine sediments could clog infiltration basins • If lower flows, current basins will be larger than necessary |
• Basins may be washed away in larger storms • If too much rain, basins might become ponds • Less effective with SLR if water table changes |
• Urgent – to stop impacts of urban pollutants on the reef • Could only be considered for new developments and developments early in design |
• Adjust outflow pipe to handle larger precipitation events • Put drains with lids on the bottom to quickly empty basins if flooding is imminent • Don’t establish in SLR inundation areas or too near the water table • Incorporate early in planning process |
Establish infiltration basins designed to accommodate larger runoff volumes and sediment loads, unless smaller runoff volumes seem more likely. Clean accumulated sediment from basins more often to prevent clogging and be prepared to reconstruct basins or parts of basins after larger storms. Basins should have draining mechanism to keep from overflowing and inundating surrounding area. Basins should be created outside the area likely to be affected by SLR. Increased ponding of detained stormwater due to larger storms should be prevented in order to prevent them from becoming mosquito breeding grounds. | • Will climate change affect ground water, and how would those changes interact with infiltration basins? • Mosquito borne diseases may increase— an unintended consequence |