NV CCS USER S GUIDE V1.1 ADDENDUM

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Cecil Phillips
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1 NV CCS USER S GUIDE V1.1 ADDENDUM PAGE 1 FOR CREDIT PROJECTS THAT PROPOSE TO MODIFY CONIFER COVER Released 5/19/2016 This addendum provides instructions for evaluating credit projects that propose to treat conifer on the project. This procedure augments and replaces portions of the Desktop Analysis. It should be applied only to projects that propose to modify conifer cover. DATA REQUIRED The following data is required to evaluate credit projects that propose to modify conifer cover. 1. Download the Tree Canopy Cover data provided by the Sage Grouse Initiative for the county or counties in which the Analysis_Area_6000m layer is located, available at map.sagegrouseinitiative.com. Unzip the folder to the desired location. The Tree Canopy Cover data located in this zipped folder is a raster GeoTiff named for the county it covers. We will refer to it here as nvcounty. NOTE: These instructions are intended to supplement the Desktop Analysis of the NV CCS User s Guide v1.1 for credit projects that propose to modify conifer cover only. Complete steps as normal. The process below requires layers generated during those steps Habitat Suitability Index Score Complete Steps in the NV CCS User s Guide v1.1, then proceed with the following Steps (Ignore Steps in the User s Guide): For credit projects that propose to modify conifer cover: Using the Clip (raster) tool, clip the nvcounty layer (downloaded in step 1 under Data Required) to the Analysis_Area_6000m. Name this file Conifer_Clipped_WGS84 (the raster will be projected to NAD83 in a following step). If data from multiple counties was downloaded, repeat for each county. [ArcToolbox> Data Management Tools> Raster> Raster Processing> Clip] Input Raster: nvcounty Output Extent: Analysis_Area_6000m Rectangle: leave as default Use Input Features for Clipping Geometry: checked Output Raster Dataset: Conifer_Clipped_WGS84 NoData Value: leave as default Maintain Clipping Extent: unchecked Using the Reclassify tool, reclassify Conifer_Clipped_WGS84 using Error! Reference source not found. below. This table translates cover classes provided in the data to percent cover based on the midpoint of the cover class. Name this file Conifer_Cover_WGS84. [ArcToolbox> Spatial Analyst Tools> Reclass> Reclassify] Input Raster: Conifer_Clipped_WGS84 Reclass Field: Value Reclassifiction: see Error! Reference source not found. Output raster: Conifer_Cover_WGS84

2 PAGE 2 Change missing values to NoData: unchecked Table 1. Reclassification Table for Conifer_Cover OLD VALUE (COVER CLASS) NEW VALUE (% COVER) Using the Project Raster tool, project the Conifer_Cover_WGS84 data to UTM Zone 11 N NAD83 meters (EPSG code 26911) and resample to the same pixel size as the HSI_Reclass layer. Name this file Conifer_Cover. If data from multiple counties was downloaded, repeat for each county. [ArcToolbox> Data Management Tools> Projections and Transformations> Raster> Project Raster] Input Raster: Conifer_Clipped_WGS84 Input Coordinate System: leave as default Output Raster Dataset: Conifer_Cover Output Coordinate System: navigate to NAD 1983 UTM Zone 11N and select Resampling Technique: BILINEAR Output Cell Size: Same as layer HSI_Reclass Registartion Point: leave blank NOTE: If data from multiple counties was downloaded, use the Mosaic to New Raster tool to mosaic the Conifer_Cover rasters together. Name this file Conifer_Cover_Mosaic, and replace it with the Conifer_Cover raster in future instructions. [ArcToolbox> Data Management Tools> Raster> Raster Dataset> Mosaic to New Raster] Input Rasters: all Conifer_Cover layers Output Location: File Geodatabase for this project Raster Dataset Name with Extension: Conifer_Cover_Mosaic (do not provide an extension) Spatial Reference for Raster: blank Pixel Type: 8_BIT_UNSIGNED Cellsize: blank Number of Bands: 1 Mosaic Operator: FIRST Mosaic Colormap Mode: LAST Digitize the outer extent of the conifer treatment area. Conifer cover must be completely removed within the treatment area(s); no residual stand cover may remain. Name this file Conifer_Treatment_Area (a) Create a new feature class, type Polygon Features. Name this file Conifer_Treatment_Area (b) Add Field Cover and Function, type short integer, to the attribute table (c) Start an editing session by right-clicking on the layer in the Table of Contents, clicking Edit Features, then Start Editing.

3 PAGE (d) Digitize the conifer treatment area(s) (e) Populate the Cover field for each treatment area with the value of (f) Populate the Function field for each treatment area with the value of 100. Be sure to save edits and stop editing when done Using the Polygon to Raster tool, convert the Conifer_Treatment_Area layer to a raster using the Cover attribute. Name this file Conifer_Cover_Mask. [ArcToolbox> Conversion Tools> To Raster> Polygon to Raster] Input Features: Conifer_Treatment_Area Value field: Cover Output Raster Dataset: Conifer_Cover_Mask Cell assignment type: CELL_CENTER Priority field: NONE Cellsize: load Conifer_Cover layer Using the Mosaic to New Raster tool, mosaic the Conifer_Cover_Mask and Conifer_Cover rasters together. Name this file Projected_Conifer_Cover. [ArcToolbox> Data Management Tools> Raster> Raster Dataset> Mosaic to New Raster] Input Rasters: Conifer_Cover_Mask; Conifer_Cover Output Location: File Geodatabase for this project Raster Dataset Name with Extension: Projected_Conifer_Cover (do not provide an extension) Spatial Reference for Raster: blank Pixel Type: 8_BIT_UNSIGNED Cellsize: blank Number of Bands: 1 Mosaic Operator: FIRST (ensure that the Conifer_Mask layer is listed first under Input Rasters) Mosaic Colormap Mode: LAST Using the Focal Statistics tool, estimate the post-project canopy cover of conifer within 1,000 meters of the project. Name this file Conifer_Cover_1000m. [ArcToolbox> Spatial Analyst Tools> Neighborhood> Focal Statistics] Input Raster: Projected_Conifer_Cover Output Raster: Conifer_Cover_1000m Neighborhood: Circle Radius: 1000 Units: Map Statistics Type: MEAN Ignore NoData in calculations: checked 1. Set the Processing Extent to be the same as Analysis_Area_6000m. 2. Set the Snap Raster to the HSI_Reclass layer. 3. Click OK at the bottom of the Environment Settings window and run the tool. NOTE: The Conifer_Cover_1000m layer will be used by the Exchange Administrator to screen credit projects that propose to modify conifer cover to ensure post-project conditions are suitable for sage-grouse. It is not used in the calculation of habitat function or functional acres.

4 PAGE Using the Reclassify tool, reclassify the Conifer_Cover layer (from step ) using Table 2 below. Name this file Current_Conifer_Function. [ArcToolbox> Spatial Analyst Tools> Reclass> Reclassify] Input Raster: Conifer_Cover Reclass Field: Value Reclassifiction: see Table 2 Output raster: Current_Conifer_Function Change missing values to NoData: unchecked Table 2. Reclassification Table for Current_Conifer_Function OLD VALUE (COVER CLASS) NEW VALUE (FUNCTION) Using the Polygon to Raster tool, convert the Conifer_Treatment_Area layer (from step ) to a raster using the Function attribute. Name this file Conifer_Function_Mask. [ArcToolbox> Conversion Tools> To Raster> Polygon to Raster] Input Features: Conifer_Treatment_Area Value field: Function Output Raster Dataset: Conifer_Function_Mask Cell assignment type: CELL_CENTER Priority field: NONE Cellsize: load Conifer_Cover layer Using the Mosaic to New Raster tool, mosaic the Conifer_Function_Mask and Current_Conifer_Function rasters together. Name this file Projected_Conifer_Function. [ArcToolbox> Data Management Tools> Raster> Raster Dataset> Mosaic to New Raster] Input Rasters: Conifer_Funciton_Mask; Conifer_Cover Output Location: File Geodatabase for this project Raster Dataset Name with Extension: Projected_Conifer_Function (no extension required) Spatial Reference for Raster: blank Pixel Type: 8_BIT_UNSIGNED Cellsize: blank Number of Bands: 1 Mosaic Operator: FIRST (ensure that the Conifer_Function_Mask layer is listed first under Input Rasters) Mosaic Colormap Mode: LAST Complete Steps in the User s Guide; then proceed with the following steps (Ignore steps ): Current Local-Scale Habitat Function In this step, you will combine the individual modifier layers (e.g., Current_HSI) together for each seasonal habitat type by multiplying the layers together (steps to ). In the next step, you will repeat the process for projected conditions, if applicable (step 1.14).

5 PAGE 5 For late-brood rearing and winter habitat: Using the Raster Calculator tool, multiply the Current_Anthro_Disturbance layer by the Current_HSI layer and Current_Conifer_Function layer to calculate local-scale habitat function for late brood-rearing and winter habitat using the following expression. Name this file Current_Local_LBRW. For breeding habitat: Current_Anthro_Disturbance * Current_HSI * Float(Current_Conifer_Function)/100 Ouput raster = Current_Local_LBRW 1. Set the Processing extent to be the same as Analysis_Area_6000m. NOTE: The Current_Local_LBRW layers should be scaled from 0 to 1 and have the same extent as the Analysis_Area_6000m layer. Ensure that this is the case Using the Raster Calculator tool, multiply the Current_Local_LBRW layer by the Current_Dist_Lek layer and the Current_Dist_Brood layer to calculate local-scale habitat function for breeding habitat using the following expression. Name this file Current_Local_Breed. Current_Local_LBRW * Current_Dist_Brood * Current_Dist_Lek Ouput raster = Current_Local_Breed 1. Set the Processing extent to be the same as Project_Area. NOTE: The Current_Local_Breed layers should be scaled from 0 to 1 and have the same extent as the Project_Area layer. Ensure that this is the case Projected Local-Scale Habitat Function NOTE: For credit projects that do not propose to modify landscape or local-scale factors, such as anthropogenic features or conifer cover no layers starting with Projected_ will have been created, and this step can be skipped. For late-brood rearing and winter habitat: Using the Raster Calculator tool, multiply the Projected_Anthro_Disturbance layer by the Projected_HSI layer and Projected_Conifer_Function layer to calculate local-scale habitat function for late brood-rearing and winter habitat using the following expression. If no Projected_ layer was created, substitute in the corresponding Current_ layer. Name this file Projected_Local_LBRW.

6 PAGE 6 Projected_Anthro_Disturbance * Current_HSI * Float(Projected_Conifer_Function)/100 For breeding habitat: Ouput raster = Projected_Local_LBRW 1. Set the Processing extent to be the same as Analysis_Area_6000m. NOTE: The Projected_Local_LBRW layers should be scaled from 0 to 1 and have the same extent as the Analysis_Area_6000m layer. Ensure that this is the case Using the Raster Calculator tool, multiply the Projected_Local_LBRW layer by the Current_Lek_Dist layer and the Current_LBR_Dist layer to calculate local-scale habitat function for breeding habitat using the following expression. Name this file Projected_Local_Breed. Projected_Local_LBRW * Current_Dist_Brood* Current_ Dist_Lek Ouput raster = Projected_Local_Breed 1. Set the Processing extent to be the same as Project_Area. NOTE: The Projected_Local_Breed layers should be scaled from 0 to 1 and have the same extent as the Project_Area layer. Ensure that this is the case. For debit projects with term impacts: Repeat steps to , replacing the Projected_Anthro_Disturbance layer with the Permanent_Anthro_Disturbance layer. Name the output of step Permanent_Local_LBRW. Name the output of step Permanent_Local_Breed. Complete Steps in the User s Guide.

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