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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19 views

Empty HydroEdge, HydroJunction, and ArcHydro attribute tables Arc Hydro Network generation?

I am attempting to convert hydrologic features into network features using Hydro Network Generation in the ArcHydro / network tools toolset. When I run it I get empty HydroEdge, HydroJunction, and ...
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38 views

How to process Floodplain delineation using ArcHydro toolbox

Long term lurker here, really hoping someone can help me out with this problem as I have been bashing my head against the wall over this problem for far to long now! I am attempting to follow this ...
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0answers
17 views

Generate Strahler number

Can we generate From-node and To-node from Arcgis 10.1 or we need other extensions? Or is there other way to generate river level ( Strahler Number)? Also, can you please explain if we need Raster ...
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52 views

Installing Arc Hydro problems

there is a link here to the various versions ESRI has to download: http://downloads.esri.com/archydro/archydro/ But the help file isn't clear on how to get it working. When I run the latest version ...
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31 views

Is there any recent documentation comparing Arc Hydro and TauDEM?

I'm researching GIS hydrology tools and I would like to do a comparison between Arc Hydro and TauDEM. I have been unable to find any relatively recent (within the last 2 years) and detailed ...
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1answer
50 views

Arc Hydro giving Error HRESLT E_FAIL has been returned from call to Component?

I have a problem with using Arc Hydro. I tried to follow these steps: App utilities> Set target locations Raster Data: C:users\seabell\Deskop\weekdata4\ Vector Data: ...
4
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2answers
215 views

Assign point IDs to respective start and end attributes of a polyline

I have two shapefiles, Point and Polyline. I'm trying to populate my polyline layer with the point data ID (systemID) where the lines start to where they end; eg. create two columns (from and to). The ...
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0answers
46 views

create a weight raster for a hydrology analysis

I determine affecting parameters of flood flow ( evaporation,vegetation,soil type, rainfall etc.). Then, I start to analysis using Arc Hydro. How do I relate among of affecting parameters? How can ...
2
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1answer
62 views

Aggregating river basins

I am not a hydrologist but am providing GIS infrastructure to our hydrology department which actually doesn't use GIS very much yet. Therefore I am asking for some hydrology related insights. Btw: We ...
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0answers
23 views

Attach attribute information to stream links

How can I attach related attribute information to individual segments of a stream?
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0answers
10 views

Difference of Archydro and Hydrology Between [duplicate]

What are differences between archydro and hydrology tools? What does ArcHydro add on hydrology tools?
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1answer
88 views

Digital Elevation Model Resolution

While I creat flood areas using DEM in ArcGIS, Which parameters do I consider to determine DEM's pixel size and resolution?
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2answers
87 views

Creating Stream Order with using thresholding

While creating stream network, I implement a thresholding. All cells's value is "1". Later, while creating stream segments, Do I use the second thresholding for separating link to segments ?
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1answer
53 views

Creating Stream Order

All of cell's values are "1" into stream network. Later, stream link seperates the segments using stream order tool. And, each stream segment has different grid codes. How do Stream Order discriminate ...
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77 views

How to perform mass-balance analysis with ArcHydro

I was wondering if there is any online manual/instruction for carrying out water mass balance analysis using ArcHydro? I have searched for such information, and the closest thing I can find is a ...
3
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1answer
156 views

Stream Segmentation in ArcGIS

When I create a stream segmentation using Archydro,“Fdr” and “Str” are the inputs for the Flow Direction Grid and the Stream Grid respectively. The output is the Link Grid. How is defined considering ...
2
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2answers
178 views

Create stream network using ArcGIS

When I create stream network in ArcGIS, for example, if there is a cell of more than 100 flowing into that, it assumes stream. Does ArcGIS decide to cells more than 100 or 80? If I decide, what are ...
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0answers
38 views

-1 value in NextDownId attribute in drainageline

I'm currently working on adjoining catchments in Arc Hydro Tools and I have noticed that there are catchments that are not adjoined. I checked all the generated datasets and found out that the ...
2
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0answers
77 views

Determine inflow outflow of polygon based on flow accumulation

I'm working with ArcGIS 10.2 to try to determine if a given site has some sort of outflow for the water coming into the site. I'm using the ArcHydro tools and have calculated the flow direction and ...
2
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1answer
114 views

Watershed Analysis

I am performing watershed analysis using Archydro tools in ArcGIS10. After calculating all flow direction, accumulation, drainage network when I perform watershed delineation, it gives me the same ...
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1answer
160 views

How to derive stream order from vector network [duplicate]

I have a recently-updated extract from NHD High Resolution (updated in last 6 months) which means it hasn't been cranked through NHDPlus, and won't for many years to come, and thus has no Stream Order ...
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1answer
147 views

Using rainfall data (raster) as an input to determine stream lines in Arc Hydro?

I was wondering if it is possible to use rainfall data (raster) as an input to Arc Hydro for determining stream lines? I am learning Arc Hydo and have gone through a couple of tutorials. As far as I ...
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0answers
110 views

Striping Artifact in Aster DEM Mosaic

I'm working with SRTM and ASTER data for a university project. My goal is to delineate watersheds and evaluation of these with ArcGis 10 and ArcHydro. But a striping error occurs with the flow ...
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1answer
294 views

Creating weight raster for flow accumulation in ArcGIS for Desktop?

I am studying flood flow using ArcGIS for Desktop. When creating flow accumulation in hydrology, there is a weight raster. However, İf you do not have it, the programme sets its value to 1 which is ...
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2answers
213 views

What is Login to Esri FTP site for Arc Hydro Tools?

Esri used to have a forum sticky that contained the login instructions to the FTP site for the Arc Hydro tools. They have since deleted all of their forums. Does anyone know the login instructions ...
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0answers
100 views

Errors recognizing ArcHydro 2.0 and ArcGIS 10 when calculating ServiceSheds with InVEST HelperTools

after validating arguments, creating output folders, setting script variables, and checking DEM properties, the Create ServiceSheds tool from InVEST Helper Tools is telling me that ArcGIS10 and ...
2
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0answers
76 views

Measuring distance between discharge point, along river, until next intersection with another river?

i hope someone can answer me my simple question. I have two sets of data a river network --> line feature discharge points along those rivers --> Point Data The discharge points represent ...
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1answer
104 views

Managing large number of catchments/watersheds

Does anyone know of an easy way to manage a large number (10,000's) of catchments/watersheds? I have defined a stream network and for each segment, I have a corresponding catchment (in a unique ...
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0answers
133 views

ArcHydro Batch Subwatershed Delineation doesn contain catchment boundaries/falls short

When running the Batch Subwatershed Delineation in ArcHydro for 10.2/10.2.1, many of the output subwatershed areas do not completely enclose the catchments/adjointcatchments they are are representing. ...
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0answers
92 views

Determining average rainfall for cumulative watershed, where only sub-watersheds defined?

I have a polygon layer with sub-catchments (sub-watersheds) and a grid of rainfall. I have used the Zonal Stats as a table to calculate the average rainfall for each sub-catchment, but I now need to ...
4
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2answers
2k views

Arc Hydro 2.0 for use with ArcGIS 10.1 (or later) for Desktop?

I have ArcGIS 10.1 for Desktop and the toolbox of Arc Hydro 1.1 beta. I want to find and donwload the Arc Hydro 2.0 for use with ArcGIS 10.1 for Desktop but, after research on the net, I cannot find ...
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1answer
700 views

Fill sinks error in arcHydro

I am working on a project that is modeling runoff at a county level. The DEM used is lidar derived and has a 5 ft resolution. The general workflow I am flowing is Sink evaluation Sink Selection (to ...
1
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1answer
119 views

empty file geodatabase error (nowhere feature class)using arcpy [closed]

i want to import a python(2.7) script to arcmap 10.1 my script has 2 inputs variables one for workspace and another raster dataset and i want o convert input raster as feature class polygon . i want ...
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2answers
4k views

How to avoid ImportError: No module named arcpy causing Failed to execute (Script) error?

I have a proplem with arc hydro in arcpy,i want to create a simple script where automated some tools from archydro in arcpy.. I use arcmap 10.1 and python 1.7,my import is one dem and my export is a 6 ...
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1answer
93 views

automatic save outputs variables in the folder workspace using pyhon for arc map 10.1

I want to create python script with aim to import him in environment arcmap 10.1 and to make a hydrologic analysis because the scipt meybe can have many outputs raster file or feature class would ...
1
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1answer
137 views

How to use ArcMap for HydroPower Potential

I am trying to determine the sites for small hydropower. I have a elevation dem, rainfall data, Curve number data (from soil and landuse shapefiles). I have already used the DEM to fill sinks, find ...
7
votes
1answer
441 views

Hydrology toolbox versus Arc Hydro toolbox?

I would like to do some watershed delineation research/development (at the County level) with our LIDAR generated DEM, after it is corrected, but am wondering what, if any, differences might result ...
0
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2answers
57 views

Polygon Data to Fit Raster

I'm working with an NHD Flowline of streams and rivers in NC, and I'm trying to only retain the ones in the raster. I tried to convert to the raster to a polygon and was going to clip them, but in the ...
2
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0answers
197 views

How to run Arc Hydro in ModelBuilder?

I tried to run a ModelBuilder program but it gave the error below. I am working in ArcMap 10.2, windows 7 64 bit pro and the raster format is Grid. When installing ArcGIS 10.2, it required me to ...
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1answer
280 views

How to get additional subbasin areas designated by points in the river network?

Update 14/1/9:I follow this post:Watershed and Stream Network Delineation, and here's my workflow: use Batch Point Generation to create batch points related to designated points(green dots) Batch ...
7
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3answers
730 views

How to get the subbasin area of each specified river segment?

I have a DEM file of one district, and I have used those following tools in spatial analyst tools in ArcGIS 10.1 to get files related to the original DEM file: Fill Flow direction Flow accumulation ...
3
votes
2answers
238 views

Delineating catchments upstream of flow sites [duplicate]

I have many flow sites and I used them to delineate catchments upstream of each flow site using Spatial Analyst Tools > Hydrology > Watershed. As you know using this tool, you'll get the catchments ...
1
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2answers
497 views

Calculating watershed runoff with landuse and rainfall data?

What is the method for computing rasters of total rainfall of a given month, flow accumulation, and land use (runoff coefficient) or soil K factor? I am using ArcMap 10.
4
votes
5answers
598 views

Stream network doesn't match the reality?

I am trying to create flow accumulation grid in ArcMap using Arc Hydro. I have the DEM (25mX25m) and the stream network shapefile. I have done the following 1)Resampled the DEM to 5m; 2)Burnt the ...
1
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1answer
441 views

How to run a shortest path analysis for DEM-derived streams and pour points?

I have a .shp for streams and another for pour points. Those features were extracted from a DEM by using the Hydrology package from the Spatial Analyst Tools of ArcGIS 10. I want to know the distance ...
1
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0answers
198 views

ArcHydro: Flow Accumulation 863988034 Cells

I've been using Arc Hydro for the last 7 years to determine catchment characteristics. I'm currently setting up a new model to determine structure locations along a proposed railway alignment. This is ...
5
votes
1answer
595 views

Watershed delineation taking into account lake/reservoir

My watershed has several big lakes. When I delineated my watershed, I had some unwanted subwatersheds and river segments inside the lakes (see fig. below). I want to tell ArcGIS/ArcHydro to delineate ...
5
votes
5answers
2k views

Calculating Runoff / Streams using DEM in ArcGIS

I am just curious about the workflow that many of you use for runoff/stream analysis using a DEM and create a "water network" from the results in ArcGIS 10.1? I know the average rainfall for different ...
1
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0answers
578 views

SCS curve numbers for rainfall-runoff model using ArcHydro

I'm trying to assign curve numbers to one of my subbasins using ArcHydro (subbasin parameter from raster) following a tutorial as you can see here: when I turn to the step after generating my own ...
2
votes
3answers
2k views

Error running ArcHydro tools function in Arcmap

I am trying to run a function from ArcHydro tools in Arcmap 10.1; Sink evaluation. But before it can finish it returns an error message, that, frankly, I don't understand at all. It goes ...