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Questions tagged [arc-hydro]

A suite of tools developed by Esri to facilitate the creation, manipulation, and display of hydro features and objects within the ArcGIS environment.

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Errors when running Arc Hydro stream definition tool [duplicate]

I am working on a project to delineate a study area but stream definition tool is failing to work. I am using an STRM DEM of 30m X 30m which I resampled to 1m x 1m because I thought resampling would ...
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What causes error 000860 when running stream definition for Arc Hydro tools?

I am using Arc Hydro tools, but whenever I reach stream definition, it fails, giving error 000860. Yet I think I have done everything right. What could be the problem? I have run DEM reconditioning, ...
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32 views

Error with stream definition and DEM reconditioning

Am new to using Arc Hydro tools and I have encountered a problem when using them. Here are the steps I have taken for my project. Am using ArcGIS Desktop 10.3 AND Arc Hydro 10.3. I created a folder ...
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35 views

Arc Hydro toolset to delineate surface drainage area

I need to determine the total amount of surface area that will drain to a given point in an urban environment. It seems that the Arc Hydro toolset can delineate the watershed that will drain to a ...
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81 views

Drainage Line Processing in ArcHydro Tools

I have a question regarding the ArcHydro Tools: I'm delineating watersheds in an urban area. The drainage lines I obtain running the ArcHydro Tools do not match with the drainage system, that's why I ...
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24 views

Watershed hierarchy delineation from reach catchments

I have a stream reach catchment raster and polygon layer generated via the Arc Hydro workflow with a user defined stream network. I would like to create a watershed hierarchy (leveled watersheds) ...
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49 views

ArcGIS Calculate flooding area based on input amount of water

I have created a DEM based on historical maps from 1816. I'm supposed to calculate the flooded area for certain amounts of water (in m³/s). I intended to do it with ArcHydro - however, as far as I ...
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1answer
249 views

DEM reconditioning?

I'm using ArcGIS Desktop 10.5 Arc Hydro Toolbox & encountered a problem while trying to delineate watersheds respectively drainage lines. The red lines indicate my obtained drainage lines, which ...
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1answer
173 views

How to create “AGREE Stream” for DEM Reconditioning in Arc Hydro tool?

I want to deliniate streams and watershed using SRTM DEM. for this I am using Arc Hydro tool. While performing DEM Reconditioning for DEM manipulation it asks AGREE Stream as a input. How to create ...
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32 views

Comparing aerial photography with stream network (flow accumulation tool)?

I have obtained a stream network for my study area (in southern Uruguay, South America) from a DEM using the Hydrotools from ArcGIS. I want to determine a flow accumulation threshold comparing my ...
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1answer
17 views

Why a range in area for catchments even if stream definition is set at a single size?

Using ArcHydro, I set stream definition at 5000, 20x20 cells (approx. 50 acres). I placed points at origins of each subsequent stream with batch point generation tool. Then used batch watershed ...
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24 views

ArcHydro: Subwatershed Does Not Contain Next Down ID

I am delineating watersheds for a hydrological model. I am using the "subwatershed" feature as this is what I want - the catchment area from the next upstream "batch point" to the current "batch Point"...
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42 views

Setting Target Locations for Arc Hydro Tools in a Python Script

I keep getting an error:Process finished with exit code -1073741819 (0xC0000005) This happens when I am trying to set the target locations for Arc Hydro Tools within a Python Script. This is the ...
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62 views

How to identify the upstream sub basins contributing towards different drainage outlet points?

I have done the watershed delineation of a basin and have created several sub-basins using ARC-hydro tool. Now I need to identify which are the correponding upstream sub-basins contributing towards ...
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1answer
93 views

Building walls to correct channelized flow in ArcHydro

My current project entails burning in a known river network into a high resolution (10x10m) DEM. In doing so, I'm attempting to build walls to correct for channelized flow in the DEM, in order to ...
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33 views

Weight upstream (adjoint) catchments by distance?

ArcGis 10.4 For a habitat model I also want to include what happens upstream, because that obviously has an effect on the habitat quality downstream. BUT the effect is limited. I have calculated ...
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1answer
53 views

ArcGIS ModelBuilder looping wrong tools?

I've created a toolchain in ArcGIS ModelBuilder (see in the picture) But after Creating the "Flow Direction" and the "Iterate field Values" it starts again with the "DEM reconditioning", it's an ...
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1answer
173 views

Adjoint catchments missing in Arc Hydro?

I am using ArcGIS Desktop 10.4. I have to calculate the upstream river catchments of all my small river catchments. As you can see in the picture below, there are catchments missing in a weird ...
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82 views

Optimized smoothing of stream lines generated from Arc Hydro? [closed]

Has anyone found an effective ArcGIS 10.3.1 workflow for smoothing streamlines generated from ArcHydro...or hydrology in general? (Fill -> Flow Dir. -> Flow Acc. -> Stream Def. -> Stream Seg.-> ...
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61 views

Improve Catchment polygon processing result accuracy?

I use the ArcHydro Toolbox and ArcGIS 10.4 I ran through the regular steps of Filling Sinks of a DEM, Flow Direction, Flow Accumulation, Stream Definition, Stream segmentation, catchment grid ...
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1answer
81 views

Creating slope grid using Arc Hydro tools says dataset does not have spatial reference?

I am not able to create the slope grid using hydro tools. I am getting a error message saying that The dataset does not have spatial reference. Please specify a valid spatial reference How do I ...
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148 views

Error running ArcHydro tools - can't set locations or arguments correctly?

I am working on trying to do some batch watershed processing. I have watersheds created using ArcHydro, and was trying to run the Longest Flow Path tool in a batch method, on different feature ...
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1answer
105 views

Limiting flow direction to D4 instead of using D8 in ArcMap?

Is there a way that I can limit flow direction to D4 instead of having it use D8? Preferably looking for a way to do it within ArcMap.
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1answer
189 views

Which algorithm is used for fill sinks in arc hydro tools?

How I can get information regarding the % of voids filled using fill sinks in DEM and the algorithm used to fill the voids using arc hydro tools?
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78 views

ArcHydro flood depth artifacts

I'm trying to delineate floodplains in a catchment using "Stream WSE from point WSE Measurements" as in (https://blogs.esri.com/esri/arcgis/2014/03/17/floodplain-delineation-using-only-arc-hydro-...
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1answer
122 views

Dissolve Lines without Dissolving Convergent Lines?

I've been playing with arcHydro and related processes a bit and have run into an obstacle. I have been creating stream networks from the flow accumulation, direction, and stream order functions. When ...
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32 views

Extract raster data by feature attributes/elements

I have a DEM raster, and a shapefile consisting of ~20 lines of steepest descent, created from the "flow Path Tracing" tool in Arc Hydro. Though the lines are all in the same shapefile, I wish to ...
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248 views

ArcHydro catchment area of specific stream segment

I am given the task to create the catchment areas of specific streams/lakes. To sum it all up, I am looking to find the catchment areas for lake 1, stream, lake 2 and downstream of lake 2 all ...
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1answer
88 views

Delimit Hydrographic Basin, based on a single river

I find myself doing a hydrological study, where I have to delimit the river basin based on a single river (polyline). I have the DEM where the river of my interest is, and I have the river as a ...
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103 views

Arc Hydro Stream WSE to point WSE measurement tool

I wish to use stream wse to point measurement tool for finding out the flood inundation extent. Can anyone provide an example of the input time series table to be used in the tool?
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1answer
392 views

Locating flooded area by creating buffer with elevation around points using ArcGIS Desktop?

I have a shapefile with points, that each have an elevation in their attribute tabel, based on how high the water level is, at a given return period. I need to create a buffer around these points at ...
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84 views

ArcHydro; Pfafstetter

I have a large river network and I need to apply Pfafstetter coding system to it. Any ideas how can I do it using ArcGIS, ArcHydro or other GIS software? The Stream Order tool in Spatial Analyst ...
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699 views

DEM Reconditioning / Stream Burning with ArcHydro [closed]

I have a specific question concerning ArcHydro. I'm using ArcGIS 10.4.1. My goal is to burn water/streams (a shapefile) 2 meters into a DEM that I have acquired from USGS (see image). The cell size ...
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1answer
127 views

Flow Accumulation Stream Buffer

I would like to create a dynamic buffer based on contributing drainage area for a stream. I have done some research and I think the best way would be to use the flow accumulation tool but I'm not sure ...
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1answer
51 views

Stream network using multiple cell thresh holds inArcGIS

I'm trying to create a stream network with drainagelines formed at varying thresh holds throughout a drainage basin. Is there any way of doing with Arc and still creating a stream network that is ...
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144 views

Watershed delineation with meandering river?

I'm using ArcGIS (Hydrology toolbox) for watershed delineation for a number of pour points, and I'm running into problems with very meandering rivers on extremely flat alluvial land (Amazon basin). ...
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68 views

Even though I added the Arc Hydro Tools to my toolboxes I cannot open and access the Arc Hydro Tools

Even though I added the Arc Hydro Tools to my toolboxes I cannot open and access the Arc Hydro Tools. [
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163 views

Reconditioning and Drainage Line ArcHydro

I cannot get ArcHydro to run Reconditioning - says object reference not set to an instance of an object. So, not finding what that refers to, I skipped that and used the sequence of Terrain ...
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3answers
594 views

How to Call ArcHydro Tools in Stand Alone Python Script

I am currently using ArcGIS ArcHydro tools to perform 'Catchment Polygon Processing'. However, it is proving time consuming to perform this for multiple rasters. How might a write a python script to ...
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89 views

Watershed tool producing same output as basin tool for all pour points [closed]

I am using the Hydrology Tools in the Spatial Analyst Toolbox (ArcGIS 10.3) I am trying to delineate watersheds in a region in order to do spatial interpolation by top-kriging at some ungaged sites. ...
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1answer
595 views

Determining Thalweg line of river without bathymetry?

I have the boundaries and centerline of a river. The Thalweg line defines the deepest elevation of a watercourse (see Image taken from Google). I do not have accurate enough bathymetry or Digital ...
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1answer
1k views

How is “Burn Stream Slope” in ArcHydro working?

I have a DEM with only small relief and many ditches. Because of the small relief, I can't calculate flowdirections for some parts of my DEM. I know that in reality water is flowing from west to east (...
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1answer
2k views

Calculating Flooded area / Inundation in ArcGIS for Desktop?

I was tasked to create a layer with the flooded areas if the sea / river level was to go up by X feet. There is no requirement to take Flow and Pour Points into account, just a simple raise in water ...
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2answers
145 views

How to plan preservation of wetland using a DEM and ArcMap?

I'm trying to plan a wetland preservation. This is the DEM I have: My aim is to hold as much rainwater as possible in my area of interest (red poly) by building (as few as possible) new and raising ...
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315 views

Different watersheds for same area because of “burned streams”

Im trying to analyse where water is flowing which rains down to my project area. This is the DEM I have (my project area is bordered blue, the red marks are my pour points): I learned from another ...
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2answers
538 views

“ERROR 010214: Unable to read STA of…” while running Arc Hydro Geoprocessing Tools

Today I tried running the Combined Terrain with Unknown Sink and Stream Locations Tool from the Arc Hydro Toolset (version 10.3.0.58, ArcMap 10.3). As input I used a DTM with values between -10 and 19 ...
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106 views

Automatically selecting main rivers of very branched river network using Arc Hydro? [closed]

I'm using ArcGIS 10.1 for Desktop and Arc Hydro. Is there any way to automatically select the main rivers of a very branched river network?
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148 views

ArcGIS 10.1 Archydrotools watersheed delineation AdjointCatchment error

The process of adjoint catchment processing considered during watershed delineation, it is complete but I only have a very small number of watersheds. I found the following error, in the report: ...
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1answer
992 views

Arcgis 10.1 Archydro tools, converting RasterToPolygon How can I solve: ERROR 000732: Input Table:

I´m using arcgis 10.1 and Archydro tools. During the Catchment Polygon Processing, one of the steps used to define the watershed limits, I get the folowing error: Executing: CatchmentPolyProcessing ...
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1answer
96 views

Query limited to 1000 features

I was working in ArcHydro 9 and ArcGIS 9.3. I have a street network and I was populating From_Node and To_Node columns in Attribute Table using ArcHydro 9 Attribute Tools tab. However only 1000 arc ...