About

Envision Geo LLC is a geospatial technology firm focused on providing high quality geographic information systems (GIS) and remote sensing services. In addition to analytics, Envision Geo LLC specializes in advanced data visualization and cartographic design.

Envision Geo is owned and operated by Sarah MacDonald, PhD who founded the company 2014 after completing her doctorate at UC Berkeley. Sarah has worked on a wide range of projects including remote sensing, spatial analysis and cartography with applications varying from natural resource management, climate change modeling, risk assessment, site suitability analysis and finally aesthetic cartography projects to tell stories with maps.

Select Clients

Wineries: Arnot-Roberts; Ashes & Diamonds; Dalla Valle; Detert; Dominus; DuMOL; Elizabeth Spencer; Eisele Vineyard; Far Niente; Faust; Flowers; Foreman; Grace Family Vineyards; Goose Ridge Vineyards; Harlan Estate; Hoopes; Hudson; Hyde; Joseph Phelps; Laird; LaRue Wines; Lerner Project; MACDONALD; Mascot; Paradigm; Promontory; Quintessa; Realm; Rudd; Silverado Farming Company; Treasury Wine Estates (Berringer, BV, Etude, Hewitt, Provenance, Stags’ Leap).

Industry: Lawrence Berkeley National Laboratory, PG&E, Coastal Viticulture Consultants, Colinas Farming Company, Tukman Geospatial, Topo Collective, Opterra Energy Services, AMKO Consulting, Human Impact Partners

Teaching

UC Davis Cooperative Extension: https://cpe.ucdavis.edu/news/instructor-spotlight-sarah-macdonald

Publications

Rohrs, J., P. Cousins, H. Fendell-Hummel, SL. MacDonald, ML Cooper. 2023 Best Practices for Monitoring Visual Symptoms of Grapevine Red Blotch Disease in Black-Fruited Wine Grape Cultivars. American Journal of Enology and Viticulture.

MacDonald*, SL, T. Schartel, M. Cooper. 2021. Exploring grower-sourced data to understand spatiotemporal trends in vector (Pseudococcus maritimus (Hemiptera: Pseudococcidae)) populations and improve grapevine leafroll disease management. Journal of Economic Entomology. DOI: 10.1093/jee/toab091

Swinchat, J, DG Howell,  SL MacDonald*. 2018. The Scale Dependence of Wine and Terroir: Examples from Coastal California and the Napa Valley (USA) Elements, 14, pp. DOI: 10.2138/gselements.14.3.xx

Xie, L., Lewis*, S.M., Auffhammer, M. 2018. Heat in the Heartland: Crop Yield and Coverage Response to Climate Change Along the Mississippi River. Environmental and Resource Economics, pp. 1-29. DOI: 10.1007/s10640-018-0271-7

Xie, L., Lewis*, S.M., Auffhammer, M. 2018. Environment or Food: Modeling Future Land Use Patterns of Miscanthus for Bioenergy Using Fine-scale Data. Ecological Economics.

Dale, L, M Carnall, M Wei, G Fitts, and SL MacDonald*. 2018. Assessing the Impact of Wildfires on the California Electricity Grid. A report for California’s Fourth Climate Assessment. www.climateassessment.ca.gov.

MacDonald*, SL, M Staid, M Staid, M Cooper. 2016. Remote hyperspectral imaging of grapevine leafroll-associated virus 3 in cabernet sauvignon vineyards. Computers and Electronics in Agriculture, 130, pp. 109-117. DOI:10.1016/j.compag.2016.10.003

*Lewis, SM, S. Gross, A. Visel, M. Kelly, W. Morrow. 2014. Fuzzy GIS-based multi-criteria evaluation for U.S. Agave production as a bioenergy feedstock. GCB Bioenergy. DOI: 10.1111/gcbb.12116

*Lewis, SM, G. Fitts, M. Kelly, L. Dale. 2014. A fuzzy logic-based spatial suitability model for drought-tolerant switchgrass in the United States. Computers and Electronics in Agriculture, 103, pp. 39-47. DOI: doi.org/10.1016/j.compag.2014.02.006

*Lewis, SM, M. Kelly. 2014. Mapping the potential for biofuel production on marginal lands: differences in definitions, data and models across scales. International Journal of Geo-Information, 3(2) pp. 430-459. DOI: 10.3390/ijgi3020430

Morrow, W, A Gopal, G Fitts, SM Lewis*, L Dale, E Masanet. 2014. Feedstock Loss from Drought is a Major Economic Risk for Biofuel Producers. Biomass and Bioenergy. DOI: 10.1016/j.biombioe.2014.05.006

Sathaye, J, L Dale, P  Larsen, G Fitts, K  Koy, SM  Lewis*, and A Lucena. 2013. Estimating impacts of warming temperatures on California’s energy infrastructure. Global Environmental Change. http://dx.doi.org/10.1016/j.gloenvcha.2012.12.005

Sathaye, JA., LL Dale, PH Larsen, GA Fitts, K Koy, SM Lewis*, and Andre Frossard Pereira de Lucena. 2013. Rising Temps, Tides, and Wildfires: Assessing the Risk to California’s Energy Infrastructure from Projected Climate Change. IEEE Power and Energy Magazine 11 (3):32–45.

Black, K, N Green-Nylen, SM Lewis*, R Marzion. 2010. Amicus curiae brief on the subject of the effectiveness of water export restrictions mandated by the Delta Smelt biological opinion, The United States District Court (Eastern District of California, Fresno Division), in the Delta Smelt Consolidated Cases, No. 1:09-cv-00407-OWW-DLB

Lewis*, SM, LC Smith. 2009. Hydrologic Drainage of the Greenland Ice Sheet. Hydrological Processes, DOI: 10.1002/hyp.7343

Gillespie, TW, S Saatchi, S Pau, AP Giorgi, SM Lewis*. 2009. Towards Quantifying Tree Species Richness of Tropical Forests. International Journal of Remote Sensing, 30, pp. 1629-1634.

CARTOGRAPHY PUBLICATIONS:

         Appellation Napa Valley Book by Richard Mendelson – all cartography, incl. 20+ full-page maps and insets      April 2016

         North Coast Research Partnership – Animation for web – The North Coast as a Source Region                       September 2017

         Water Atlas by Guerilla Cartography – Current and Historic Baylands of the San Francisco Bay                      December 2017

         Food Atlas by Guerilla Cartography – Oenoscarpa batua: The Original Amazonian Superfood                           January 2013