HydroShare: Cyberinfrastructure for Advancing Hydrologic Knowledge through Collaborative Integration of Data Science, Modeling and Analysis

HydroShare is a web based hydrologic information system that enables users to share and publish data and models in a variety of flexible formats, and to make this information available in a citable, shareable and discoverable manner. It includes a repository for data and models, and tools (web apps) that can act on content providing users with a gateway to high performance computing and computing in the cloud. Its goal is to advance hydrologic science by enabling the community to more easily and freely share products resulting from their research, not just the scientific publication summarizing a study, but also the data and models used to create the scientific publication. <br

Landlab: Plug-and-play numerical modeling of Earth-surface dynamics

Abstract:<br>Numerical models are widely used in the environmental sciences. Among these are the sciences that deal with the Earth's surface, including geomorphology, hydrology, sedimentology, glaciology, volcanology, and landscape ecology, among others. Although the scientific questions addressed by these diverse disciplines vary widely, in many cases the development of computational models involves similar programming problems: construction of a grid, calculation of geophysical flows across a 2D topographic surface, conservation of mass, input of parameters and initial conditions, output of calculations, and other tasks. Landlab is a Python-language programming library that takes advantage of these commonalities to help modelers develop, refine, and explore models more efficiently. Landlab provides four general capabilities: easy creation and configuration of a model grid (regular or irregular) and associated data arrays, encapsulation of simulation code into reusable components that can be coupled, a framework for constructing continuous-time stochastic cellular automata, and utilities for handling input, output, and topographic data preprocessing. Landlab is an element of the Community Surface Dynamics Modeling System (CSDMS), and is available at https://landlab.github.io.  <br><br>(Poster presented at NSF SI2 PI meeting, February 2017, Arlington, VA)<br

HydroShare: Advancing Hydrology through Collaborative Data and Model Sharing

HydroShare is an online, collaborative system for open sharing of hydrologic data, analytical tools, and models.  It supports the sharing of and collaboration around “resources” which are defined by standardized content types for data formats and models commonly used in hydrology.  These include time series, geographic grids and shapes, multidimensional space-time data as well as models and model instances. This poster illustrates the HydroShare collaborative environment and web based services developed to support the sharing and processing of hydrologic data and models.  With HydroShare you can: Share your data and models with colleagues; Manage who has access to the content that you share; Share, access, visualize and manipulate a broad set of hydrologic data types and models; Use the web services application programming interface (API) to program automated and client access; Publish data and models and obtain a citable digital object identifier (DOI); Aggregate your resources into collections; Discover and access data and models published by others; Use web apps to visualize, analyze and run models on data in HydroShare.  The capability to assign DOIs to HydroShare resources means that they are permanently citable helping researchers who share their data get credit for the data published.  Models, and Model Instances, which in HydroShare are a model application to a specific site with its input and output data can also receive DOI's.  Collections allow multiple resources from a study to be aggregated together providing a comprehensive archival record of the research outcomes, supporting transparency and reproducibility, thereby enhancing trust in the findings.  Reuse to support additional research is also enabled.  HydroShare supports web apps to act on resources for cloud (server) based visualization and analysis, including large scale geographic and digital elevation model analysis at the CyberGIS center at the National Center for Supercomputing Applications (NCSA) and execution of SWAT and RHESSys models.<br