2022-04-27 11:02:10.100 2022-04-29 11:54:56.97 editor:esri.dijit.metadata.editor 1.0 FGDC CSDGM Metadata FGDC false 8a2e87be4895448e94731f1c06bce2b1 2022-04-27 11:02:10.100 BLRA Irrigation planner The ACJV contracted Nathan Van Schmidt to develop an irrigation planner for the Eastern Black Rail.  <div><div>The Eastern Black rail Irrigation Planner (EBIP) is a program developed to create and explore hypothetical irrigation scenarios to create emergent herbaceous wetlands on slopes with shallow, flowing sheets of water (upper-right picture). This document provides a comprehensive instruction manual for understanding how to use the model.</div><div>EBIP is an agent-based model. For clarity, the names of agents, variables, and files will be in italics, while user interface controls will be in bold italics. The model simulates the release of single “flow”s of water (bottom-right picture). Each flow moves downhill following a 11-m resolution digital elevation model (DEM) and can spread out into other flows if there is a large enough volume of water or the slope is shallow enough. The path of the flows is complete when they hit an “exit” which are generally either the edge of the modeled landscape or a pre-existing body of water. After all flows are complete, the total volume of water that passed over each patch (i.e., raster cell) of on the modeled landscape is summed—this is the cell’s flow accumulation. Land-covers are then assigned based on the total flow accumulation. Patches with ≥13 acre-feet of flow accumulation are herbaceous wetland, while those with ≥85 acre-feet are water. Patches with insufficient flow accumulation are only irrigated, but these patches are counted as wetland fringe if they are one of the four cardinal neighbors of a patch that is herbaceous wetland. Contiguous patches of herbaceous wetland and fringe patches that are larger 0.16 ha (the minimum home range size of radio-tracked black rails in similar habitats in California) create wetlands, which the model represents as centroids. Finally, a multi-season occupancy model simulates black rail metapopulation colonization and extinction dynamics over the set of wetlands. The flows of water, wetland habitats, and black rail occupancy estimated by EBIP are designed to be planning tools and are not guarantees of the real effects of releasing water or black rail colonization probability from any given point.</div><div>1.2</div></div> Grid layer with links to data for the ACJV Black Rail Irrigation Mapper tool. Contact acjv.org for more information. acjv.org BLRAACJVFWSU.S. Fish and Wildlife Service The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee.As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information. Other Constraints Other Constraints Other Constraints Other Constraints https://fws.maps.arcgis.com/apps/webappviewer/index.html?id=8a2e87be4895448e94731f1c06bce2b1