Work with input data

Configure input dataIngest real-time dataIngest historical dataLocation parametersDate and time parametersFeed polling interval schedulingFeed to history feature layer

Feeds

Work with feedsFeed details and statusShare feedsAWS IoTAzure Event HubAzure Service BusBaron WeatherCisco Edge IntelligenceDTN WeatherGeotab (DeviceStatusInfo)Geotab (LogRecord)gRPCGTFSHAAS AlertFeature LayerFlightAware (Airborne)FlightAware (Surface)HTTP PollerHTTP ReceiverHTTP SimulatorKafkaMotive AVLMQTTPreCise MRMRabbitMQRSSSamsaraStream LayerTAK Client (Beta)TracPlusVectronic AerospaceVerizon Connect RevealWazeWebSocket

Data sources

Work with data sourcesAmazon S3Azure Blob StorageAzure Cosmos DBFeature LayerFeature Layer (archive)HTTP PollerRSSStandard geographies

Data formats

Supported data formatsDelimitedJSONEsri JSONGeoJSONXML

Troubleshoot

Common ingestion issues and solutions
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DTN Weather

In this topic

  1. Examples
  2. Usage notes
  3. Parameters
  4. Considerations and limitations

The DTN Weather feed type in ArcGIS Velocity connects to DTN's real-time and forecast feature layer services to access hyperlocal, accurate, and industry-specific weather data. It delivers current weather conditions, forecasts, severe weather alerts, radar, and lightning information to support proactive decision-making. This feed is ideal for industries where weather directly impacts operations, such as transportation, utilities, agriculture, and emergency management.

Learn more about DTN

Examples

The following are example use cases for the feed:

  • A GIS analyst uses the DTN Weather feed in a real-time analytic to track smoke plume movement and issue air quality alerts to communities in the western United States.
  • A city planner uses the DTN Weather feed to monitor incoming tropical storm data, combining it with tide gauge readings to model potential flooding impacts and inform evacuation orders.

Usage notes

Keep the following in mind when working with the feed:

  • The DTN Weather feed uses the ArcGIS authentication. You must have an active DTN ArcGIS account before configuring the feed.
  • DTN maintains an enterprise portal. When you purchase DTN Weather data, you receive a username and password to access the enterprise portal, and a dedicated group is created specifically for your customer account. To set up the feed, enter your DTN Weather username and password in the corresponding authentication parameters.

Parameters

Consider the following when using the feed:

ParametersDescriptionData type
Username

(required)

The username required to access the DTN Weather enterprise portal.

String

Password

(required)

The password required to access the DTN Weather enterprise portal.

String

WHERE clause

Specifies a Structured Query Language (SQL) clause used to filter features loaded from the specified layer.

The default is to load all features using 1=1. This default clause can be modified to include specific attribute values and logic conditions.

SQL-92 WHERE clause syntax on the fields in the layer is supported for most layers.

You can update this parameter in the Filter Data step.

QueryString

Out fields

Specifies the fields to be loaded from the DTN Weather layer into Velocity.

The default is an asterisk (*) that denotes all fields that are loaded.

If specific fields are provided, they should be listed as comma-separated field names, for example, OBJECTID, device_id, timestamp, horizontal_accuracy, latitude, longitude.

You can update this parameter in the Filter Data step.

String

Output spatial reference

(optional)

Specifies the well-known ID (WKID) of a spatial reference. The default WKID is 4326.

Velocity loads data from the DTN Weather layer using the spatial reference defined in this parameter.

You can update this parameter in the Filter Data step.

String

Additional logging

(optional)

Specifies whether logging for raw requests issued by Velocity is turned on. The default is False.

Note:

Only turn on this parameter for troubleshooting purposes and turn it off when troubleshooting is complete. Once turned on, start the feed, and the info level logs are available on the feed logs page. Contact Esri Technical Support for help with troubleshooting.

Boolean

Timestamp field

Specifies a date field for retrieving only the latest features.

If a timestamp field value is not specified at every interval, the feed loads all features from the layer as events to be processed.

If a timestamp field value is specified, the first time Velocity polls the layer, it loads all features with the datetime value in the timestamp field within the past minute and earlier than the first feed poll time that also meet the criteria of the WHERE clause. For each subsequent poll, only features with a timestamp field value between the last polling time and the current polling time that also meet the criteria of the WHERE clause are loaded.

String

Considerations and limitations

Consider the following when using the feed:

  • The polling interval should not be set to a shorter interval than the typical response time of your layer query.
  • The DTN Weather layer must include a unique identifier field. This unique identifier must not be null, must contain unique values, and must be one of the following data types:
    • Integer (32-bit and 64-bit positive values only)
    • String
    • GUID
    • Date
    • Date only
    • Time only
  • The layer must have a unique identifier that supports the Min and Max summary statistics operations.

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In this topic
  1. Examples
  2. Usage notes
  3. Parameters
  4. Considerations and limitations