Using NetCDF Data with AHGW Pro

Have you needed to use netCDF files with Arc Hydro Groundwater Pro? NetCDF files are intended to provide standardization to multidimensional scientific data. These files can be imported and used in ArcGIS Pro and are compatible with Arc Hydro Groundwater Pro. However, they must first be converted using ArcGIS Pro geoprocessing tools.

ArcGIS Pro has a few tools specifically dedicated to manifesting netCDF data as a familiar data form in ArcGIS Pro. These data forms include feature layers, rasters, and tables. Once netCDF data has been converted, it can be used with any Arc Hydro Groundwater Pro tool that accepts the given data form.

The ArcGIS Pro tools for netCDF data are found in the Multidimension Tools Toolbox. There's a toolset devoted to netCDF data, but some of the other tools in the Multidimension Tools toolbox will also work with netCDF data.

Example of ArcHydro Groundwater Pro greodatabase volume

The following is a suggested workflow for working with netCDF data and Arc Hydro Groundwater Pro:

  1. Use the appropriate tool from the Multidimension Tools toolbox to convert the netCDF data to the desired data form.
  2. If necessary, add it to the Arc Hydro Groundwater Pro geodatabase. This might be essential depending on what you hope to do with the data.
  3. Make any necessary adjustments or additions to the data to ensure compatibility with the Arc Hydro Groundwater Pro tool you hope to use.
  4. Use the feature layer, raster layer, and table view in the Arc Hydro Groundwater Pro tool of your choice.

A similar workflow exists for Arc Hydro Groundwater for ArcGIS Desktop:

  1. Load netCDF data into the map.
  2. Use the appropriate netCDF-related tool from the Multidimension toolbox.
  3. The output of that tool (e.g. a netCDF feature layer) can be used as input to any geoprocessing tool that accepts that kind of input.
  4. If desired, the temporary layer from the Make NetCDF Feature Layer tool can be saved to your computer's drive with the "Save To Layer File" or "Copy Features" tool.

It's possible that the netCDF data does not have the appropriate data for use with Arc Hydro Groundwater Pro. You might have to edit the data to ensure compatibility (e.g. adding HydroIDs). Furthermore, converting netCDF data to a feature layer or a raster does not mean you have all the data needed to run your Arc Hydro Groundwater Pro. Usually, the feature layer, raster layer, or table will just be one piece of running a tool effectively.

Try using netCDF data with Arc Hydro Groundwater Pro today!

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AHGW Pro for ArcGIS Pro Now in Beta!

We are excited to announce the release of Arc Hydro Groundwater Pro (AHGW Pro) for ArcGIS Pro in beta! Arc Hydro Groundwater has long helped ArcGIS users archive, display, and analyze multidimensional groundwater data. Now these same capabilities are available in ArcGIS Pro.

Arc Hydro Groundwater is a product that Aquaveo created in collaboration with ESRI. It is an add-on to ArcGIS software that enables you to work with groundwater data in ArcGIS applications. Its many capabilities include modeling boreholes and wells, creating and editing cross sections, and building 3D models.

With this new release of AHGW Pro, we wanted to highlight some of the features available.

Example of AHGW Pro

For starters, you now get to combine the geodatabase technology of Arc Hydro Groundwater with the modern interface of ArcGIS Pro. AHGW Pro contains all of the tools available in AHGW with the exception of the MODFLOW analysis tools.

Another change is that ArcGIS Pro often uses panes rather than wizards and dialogs. Panes, unlike dialogs, do not have to be closed for other work to get done in ArcGIS Pro. The AHGW tools have been converted to use this pane format. This means that a tool from an AHGW Pro toolset can run while you work on something else. Furthermore, it gives you the capacity to leave the Geoprocessing pane open. Leaving a pane open preserves the last settings used in that pane. This means you can use the Geoprocessing pane to run a tool with the same settings—or slightly modified settings—more than once without having to set all the same parameters again.

Of course, you might be wary of having a lot of panes open. Fortunately, ArcGIS Pro makes it possible to stack panes, so they are neat, organized, and out of the way. You can therefore have multiple AHGW tools open while working on your project.

See what AHGW Pro and ArcGIS Pro can do together by downloading AHGW Pro for ArcGIS Pro today.

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World Bank ArcHydro Groundwater Training

Recently, Aquaveo had the opportunity to participate in an ArcHydro Groundwater training organized by the World Bank. The online training happened from the 9th to the 12th of November 2021.

AHGW example

The training covered the uses and applications of the ArcHydro Groundwater (AHGW) tool used with ArcGIS. AHGW aids in displaying and analyzing multidimensional groundwater data, including representations of aquifers and wells/boreholes, 3D hydrogeologic models, temporal information, and data from simulation models.

Topics covered in the 4-day training included setting up a groundwater model and working with boreholes data. Other topics covered further included creating wells and cross sections in groundwater models, along with performing model analysis.

The training had 30 active participants in attendance from the National Water Informatics Centre (NWIC), the National Hydrology Project (NHP), the National Institute of Hydrology (NIH), the Water Resources Department (WRD) of the Indian Institute of Remote Sensing, and ESRI. For the online training, participants were located in various states in India including: Kerala, Karnataka, Uttar Pradesh, Tamil Nadu, Sikkim, West Bengal, Odisha, Telangana, Maharashtra, Gujarat, and Rajasthan.

Aquaveo would like to thank the World Bank for setting up this online training. We'd also like to thank all of the participants for their interest and efforts in using AHGW.

If you are interested in attending a training session for AHGW or any of Aquaveo's products, check out our training page for upcoming training sessions. Training sessions can be either in-person or online. Additionally, you can request a training session from Aquaveo by contacting our consulting team.

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Creating Water Levels in AHGW

When using Arc Hydro Groundwater (AHGW) with ArcMaps, you can create a line that represents a water level, or other structures in your cross section 2D plots. This article will discuss some of the ways to do this.

Inserted water level in ArcMap

If the data is available as a raster surface of water level data, you first call the "Create XS2D Line Feature Class" tool to set up a line feature class for holding the data. Then you will run the Transform Raster to XS2D Line tool, which will insert the line feature for the raster elevation levels that intersect the cross section.

If a raster is not available, you can create a water surface line, but a little more work will be involved.

First, run the Create XS2D Line Feature Class tool once you have the basic cross section set up, to hold the water level line.

Next, you'll have to do one of the following:

  • If you have a general idea of the water level, enter the water level line manually. Manually draw in the water level line, using the Create Features tools built into ArcMap to create polyline features. This is all manually done, and may not match the more detailed data you might have.
  • If you have an image or drawing of the water level for the cross section you're working on, you can insert it behind the XS2D cross section in a way that will match the size and scaling of the cross section. While it is typically used for existing diagrams of cross sections, it could also be used to show the water levels if you happen to have such an image.
  • If you have the water level data as points, you could also add them to an XS2D cross section. This takes point and/or line features with XYZ data and transforms them onto the XS2D cross section. Points at the ground location are used to project onto the XS2D Cross Section, and are given an elevation value based off of a ground elevation raster, not a water level. But, if the water level data is sparse, adjust the values of the water level points to known values (manually), and then follow the first suggestion (manually drawing a line) but snapping the line on these imported points.
  • Finally, if you have water elevation values at known distances along the line, you could simply import them via a spreadsheet, using the guidelines below:
    • The X value in the XS2D data frame is the distance along the SectionLine feature used to create the XS2D data frame. So if a section line is 1000m long, X=0m is for the start, and X=1000m is for the end. You could automatically calculate this distance if you don't have it by running the Add XY Coordinates (Data Management) tool to get the X values in the attribute table, and then copy them to a spreadsheet.
    • The Y values in the XS2D data frame are simply real-world elevation values, multiplied by the Vertical Exaggeration value of the XS2D data frame. For example, if you have a water level of -100m, and a vertical exaggeration of 20, then it will be plotted in the XS2D data frame with a Y value of -2000 (-100 * 20).
    • After getting the X values (distance along the curve), you could simply calculate the Y values as well. If you have depth values, be sure to convert the water levels to elevations, and once you have elevations, multiply by the vertical exaggeration.
    • Then, run the Add XY Data tool in ArcMap. Put the points into an XS2D point layer, and add it to the XS2D cross section data frame. Then make an XS2D line feature class (as mentioned above), and use the create polyline tools to sketch out the water levels (as mentioned above) - basically connecting the dots. When making the line features, make sure that they snap to the points you just created.

Try using AHGW to create water levels or other structures in ArcMap today!

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