Work with Multidimensional Raster Data in ArcGIS

Summary

This tutorial guides viewers on integrating multidimensional data into ArcGIS Pro and ArcGIS Online. It demonstrates creating a mosaic dataset in ArcGIS Pro, adding netCDF files, selecting variables, and calculating statistics. The video also shows how to visualize data variables over time, query data points, and export the dataset as a CRF file for use in ArcGIS Online. The process concludes with uploading the multidimensional data to ArcGIS Online for sharing.

Takeaways

• 🌐 Multidimensional data represents information collected over various dimensions, often found in netCDF, HTF, and grid file formats.
• 🗂️ To work with multidimensional data in ArcGIS Pro, create a new mosaic dataset within a Geodatabase.
• 📂 Add Rasters to the mosaic dataset by selecting the appropriate raster type, such as netCDF files with a .NC extension.
• 🔍 Use the Properties button to configure Raster Type Properties, including selecting the variables to be imported with the multidimensional data.
• 📊 Choose raster processing and post-processing options, such as Calculate Statistics, to enhance the dataset.
• 🌍 After creating the mosaic dataset, use the Multidimensional tab to select and visualize variables, like mean ocean temperature over time.
• ⏱️ The 'Play' feature allows users to see how selected variables change over time, such as temperature fluctuations.
• 🔎 Interact with the data by querying specific locations on the map to get detailed temperature readings, like 298 Kelvin.
• 🔄 Export the multidimensional mosaic dataset as a CRF (cloud raster format) file using the Copy Raster tool for multidimensional support.
• 🌟 CRF is natively supported in ArcGIS Online, making it easy to upload and share multidimensional data with others.
• 📈 Upload the CRF file to ArcGIS Online as a Tiled Imagery Layer to make the multidimensional data accessible for sharing and collaboration.

Q & A

What is multidimensional data commonly used for?

Multidimensional data is commonly used for representing data that has been collected over multiple dimensions, such as different variables and time periods.

What are some common formats for multidimensional data?

Common formats for multidimensional data include netCDF, HDF, and grid file formats.

How can multidimensional data be imported into ArcGIS Pro?

In ArcGIS Pro, you can import multidimensional data by creating a new mosaic dataset, adding rasters, selecting the appropriate raster type, and specifying the variables to be included.

What is the file extension for netCDF files?

The file extension for netCDF files is .NC.

How can you view the multidimensional data in ArcGIS Pro?

You can view multidimensional data in ArcGIS Pro by selecting the dataset in the Table of Contents and using the Multidimensional tab to choose and display variables.

What is the purpose of the 'Play' button in the Multidimensional tab?

The 'Play' button in the Multidimensional tab is used to animate and view how the selected variable changes over time.

How can you interact with the data in ArcGIS Pro?

You can interact with the data in ArcGIS Pro by clicking on the map to bring up a query window, which shows the exact value of the location you selected.

What is the temperature conversion from Kelvin to Celsius mentioned in the script?

The script mentions a temperature of 298 Kelvin, which corresponds to 25 degrees Celsius.

How can you export a multidimensional mosaic dataset in ArcGIS Pro?

You can export a multidimensional mosaic dataset in ArcGIS Pro using the Copy Raster tool, specifying the output as a CRF (cloud raster format) file.

What is the significance of CRF files in ArcGIS?

CRF (cloud raster format) files are natively supported multidimensional formats in ArcGIS, allowing for easy integration and sharing of multidimensional data.

How can multidimensional data be uploaded to ArcGIS Online?

Multidimensional data can be uploaded to ArcGIS Online by creating a new Tiled Imagery Layer and dragging the CRF folder into the designated area during the layer creation process.

Outlines

00:00

🌐 Working with Multidimensional Data in ArcGIS

This paragraph introduces the concept of multidimensional data, which is data collected over multiple time periods and is available in various formats like netCDF, HTF, and grid files from open data sources. The focus is on how to import this data into ArcGIS Pro and ArcGIS Online for analysis. The process begins in ArcGIS Pro by creating a new mosaic dataset from a Geodatabase, specifying its name and properties. The user is guided to add rasters to the mosaic dataset, selecting the appropriate raster type (netCDF in this case), and setting up properties such as variables to include. The tutorial continues with instructions on calculating statistics and creating the multidimensional mosaic dataset. Once created, the user can interact with the data to visualize changes over time, such as mean ocean temperature, and query specific data points. The paragraph concludes with instructions on exporting the data as a CRF file, a format compatible with ArcGIS Online, and uploading it to share with others.

Keywords

💡Multidimensional data

Multidimensional data refers to datasets that have more than two dimensions, often including elements such as time, space, and various measured variables. In the context of the video, multidimensional data is used to represent complex information collected over different time periods and spatial locations, such as ocean temperature data. The video demonstrates how to work with such data in ArcGIS Pro and ArcGIS Online, highlighting its importance in environmental analysis and data visualization.

💡ArcGIS Pro

ArcGIS Pro is a geographic information system (GIS) software developed by Esri that allows users to create, visualize, analyze, and manage geographic data. The video script describes using ArcGIS Pro to import and manage multidimensional data, showcasing its capabilities in handling complex datasets like netCDF files. It is a key tool for geospatial analysis as demonstrated in the video.

💡Mosaic dataset

A mosaic dataset in ArcGIS Pro is a collection of raster data that can be managed as a single layer, allowing for efficient storage and access. The script mentions creating a mosaic dataset to handle multidimensional data, emphasizing its utility in organizing and processing large volumes of raster data, such as satellite imagery or climate data.

💡netCDF

netCDF stands for Network Common Data Form, which is a file format for storing and distributing scientific data, particularly for multidimensional datasets like climate and weather information. In the video, netCDF files are used as an example of the type of multidimensional data that can be imported into ArcGIS Pro, highlighting the format's prevalence in environmental data sharing.

💡Raster data

Raster data, also known as grid data, is a digital data representation where the data is divided into a grid of cells, each containing a single value. The video script discusses adding rasters to a mosaic dataset, indicating that raster data is a fundamental component of the multidimensional datasets being worked with in the tutorial.

💡Variables

In the context of multidimensional data, variables refer to the different measurements or attributes associated with each data point. The script describes selecting variables to import with multidimensional data, such as temperature or salinity, which are crucial for understanding the data's scientific significance.

💡Calculate Statistics

This term refers to the process of computing statistical properties of raster data, such as mean, median, and standard deviation. In the video, the option to calculate statistics is used during the creation of a multidimensional mosaic dataset, which helps in understanding the distribution and characteristics of the data.

💡CRF (Cloud Raster Format)

CRF, or Cloud Raster Format, is a multidimensional raster data format natively supported by ArcGIS. The video script describes exporting a multidimensional mosaic dataset as a CRF file, which facilitates the easy transfer and use of the data in ArcGIS Online, demonstrating the format's role in cloud-based GIS applications.

💡ArcGIS Online

ArcGIS Online is a cloud-based platform that allows users to create, share, and collaborate on geographic information. The video script shows how to upload a multidimensional dataset to ArcGIS Online, making it accessible for sharing and further analysis, which underscores the platform's utility in collaborative geospatial projects.

💡Tiled Imagery Layer

A Tiled Imagery Layer in ArcGIS Online is a type of layer that displays raster data in a tiled format, optimizing performance and responsiveness. The script mentions creating a Tiled Imagery Layer from a CRF file, illustrating how multidimensional data can be made available for web mapping and analysis in a user-friendly format.

💡GeoSnap

GeoSnap is a term used in the video to refer to a segment or episode of a tutorial or demonstration, likely focused on geographic information and analysis. The video script ends with a reference to 'this GeoSnap,' suggesting it is part of a series of educational content related to geospatial technology.

Highlights

Multidimensional data represents data collected over multiple dimensions and time periods.

Multidimensional data is available in netCDF, HTF, and grid file formats from open data sources.

ArcGIS Pro and ArcGIS Online are platforms for working with multidimensional data.

Creating a mosaic dataset in ArcGIS Pro is the first step for multidimensional data integration.

Default properties can be used for creating a mosaic dataset with ArcGIS Pro.

Raster data can be added to a mosaic dataset in ArcGIS Pro.

netCDF files are selected for multidimensional data input in the mosaic dataset.

The Properties button opens the Raster Type Properties window for variable selection.

Variables are chosen within the Raster Type Properties window for multidimensional data integration.

Raster processing options include Calculate Statistics for multidimensional data.

Multidimensional mosaic datasets can be visualized in ArcGIS Pro.

The Multidimensional tab allows for variable selection and time-based data visualization.

Data interaction is possible through querying the map for specific temperature values.

Temperature values are displayed in Kelvin and can be converted to Celsius.

The Copy Raster tool is used to export multidimensional mosaic datasets as CRF files.

CRF files are natively supported for multidimensional data in ArcGIS.

Multidimensional data can be uploaded to ArcGIS Online for sharing.

Imagery Layer is selected for uploading CRF files to ArcGIS Online.

Once uploaded, multidimensional data in ArcGIS Online can be shared with others.

Transcripts

Multidimensional data commonly represents  data that's been collected over multiple  

time periods. It can be found online at various  open data sources in netCDF, HTF, and grid file  

formats. So let's take a look how to bring this  data into ArcGIS Pro and ArcGIS Online, so you  

can get started working with multidimensional data  today. We'll start things off in ArcGIS Pro. We'll  

right-click on our Geodatabase to create a new  mosaic dataset. We'll give our mosaic dataset a  

name, stick with the default properties, and hit  Run. You will navigate back to our Catalog, and  

right-click on our mosaic dataset to Add Rasters.  I'll select the raster type that corresponds to  

my input data. In this case, I'm going to be  using netCDF files. So I'll choose netCDF, and  

then navigate to the folder that they're located.  netCDF files will have a file extension of .NC.  

I'll then select this Properties button which  will open up the Raster Type Properties window.  

I'll select Variables, and choose the variables  that I want to bring in with my multidimensional  

data. I'll then hit OK. For the raster  processing and post-processing options,  

I will choose Calculate Statistics. I'll then  hit Run to create my multidimensional mosaic  

dataset. Once created, I can zoom out to see  the full extent of my new dataset. I'll select  

my dataset in my Table of Contents, then navigate  to the Multidimensional tab at the top. I have the  

dropdown option to choose which variable I want  displayed. Once selected, I'll hit Play to see  

how it changes over time. We're looking at mean  ocean temperature over the last 10 years. You  

can also interact with my data by simply clicking  on the map. This will bring up the query window,  

where I can see the exact temperature of  the location I chose. It's 298 Kelvin, which  

corresponds to 25 degrees Celsius. Now using the  Copy Raster tool, I'll export my multidimensional  

mosaic dataset as a CRF file, or a cloud  raster format. I'll specify an output location,  

give my CRF a name, and hit Save. I'll ensure that  both these multidimensional options are checked,  

and then I'll hit Run. CRFs are the natively  supported multidimensional format in ArcGIS. This  

means I can easily bring this data into ArcGIS  Online. I'll hit New Item, and choose Imagery  

Layer. I'll select Tiled Imagery Layer, and then  choose one image. I'll hit Next, and simply drag  

in my entire CRF folder into the dotted area.  I'll specify a name along with a summary, then  

hit Create. Once uploaded, my multidimensional  data is now available in ArcGIS Online,  

which I can now easily share with others. That's  it for this GeoSnap. We'll see you next time!