Tuesday, June 13, 2017

New masters students in the Weisberg Lab

These past two weeks have seen the addition of two new lab members joining the Great Basin Landscape Ecology Lab.  Joe Brehm and Anna Knight are both starting master's programs in natural resources. Joe comes to us from the Great Basin Institute where he worked as a data administrator.  Anna comes to us by the way of USGS in Moab, UT. Joe's thesis will take our cheatgrass die-off mapping to the next level. In addition to extending the analysis to Skull Valley, Utah, there will be methodological improvements to the remote sensing and a more thorough assessment of the spatial pattern of die-offs.

Anna's project is aimed at understanding which watersheds in the Great Basin are susceptible to long-term degradation, like erosion and incision.  Dave Board and myself have already calculated watershed morphometrics for thousands of watersheds in the Great Basin, which will help feed into Anna's analysis.

Congratulations Anna and Joe.  I look forward to getting to work with both of you.

Tuesday, June 6, 2017

Spatial join to transfer attributes in ArcGIS

Having uniform attributes can be imperative to ensuring that datasets are compatible with one another. Recently I found a nice quick trick to transferring attributes in ArcGIS without using the "transfer attributes" tool in the Spatial Adjustment toolbar.  Simply pick two non-overlapping vector layers and run the Spatial Join tool with the target layer as the layer that does not yet contain the field that you want and the join layer as the layer with the fields that you want.  Voila.  You end up with all of the fields from the join layer in the target layer, but with empty attributes waiting to be populated.