My research focuses on investigating the influence of terrain characteristics, climate, and disturbance (like wildfires and grazing) variability on the vegetation organization, that is a resultant of competition between various plant species such as trees, shrubs, and grass. For my study, I have explored semiarid and arid watersheds from Sevilleta National Wildlife Refuge (SNWR) near Socorro, New Mexico, and Barta Brother Ranch (BBR), Nebraska.
My research workflow typically includes the following steps:
- study about the current state of an ecosystem
- visualize the current state by analyzing available observations
- understand the processes involved
- create multi-layered numerical models using Landlab
- calibrate the model and cross-check model performance with observations
- create hypotheses and employ the models to forecast ecosystem response
- repeat few or all of the above steps -> ‘Re’search
In Landlab, earth surface processes are represented as components. To help myself and the community to quickly build ecohydrologic models, I created the following Landlab components: SoilMoisture, Radiation, PotentialEvapotranspiration, Vegetation, and VegCA. These components can be coupled to build ecosystem models. I present few examples below:
- Vegetation organization in a semiarid ecosystem in central New Mexico
- Influence of topography on vegetation organization in a semiarid ecosystem in central New Mexico
- Influence of disturbances on shrub invasion of grasslands in arid watersheds.
- Reusing Landlab ecohydrology model with bias corrected data from gridded hydrometeorology products.
I would love to discuss more about my research. Please contact me to ask any questions you may have.