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jamiesomma in Spatial Analyst3 days ago (Show more Show less)

Snap Pour Point tool: Why is it hanging at 100%?

When I'm running Snap Pour Points tool for a set of 15 points on a flow accumulation raster, it's hanging after getting to 100% on the progress bar for the "Snapping pour points..." step. All 15 points were generated from certain portions of the stream line generated from the sane flow accumulation. I'm needing to do this because though 13 points… (Show more Show less)

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jamiesomma (to jamiesomma) 2 days ago (Show more Show less)

Original post was under ArcMap v10.6.1. I've upgraded to 10.7.1 but still seeing the same issue.

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_si_ in Spatial Analyst9 years ago (Show more Show less)

Calculating Watersheds from multiple Pour Points

Hi there I am doing an analysis on a small river, using reaches for which I need to calculate various parameters for each reach, one of which is watershed/catchment area the reach is draining. I'm familiar with the general principles of generating a watershed, but I have 116 reaches and therefore 116 watersheds, which could take a while! I've… (Show more Show less)

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jamiesomma (to _si_) 3 days ago (Show more Show less)

I've got the same question. I'm looking to run it both ways, but when I'm running Snap Pour Points tool for a set of 15 points on a flow accumulation raster, it's hanging. I'm needing to do this because though 13 points which were generated from places along the stream line feature still coincide with the stream line raster cells in the flow…

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Geolink_1 in Spatial Analyst3 days ago (Show more Show less)

How to define an area of 1000 or 10000 ha around a site

Hi I have a site (polygon) of irregular shape and need to define an area around that polygon. The buffer only allows to calculate distance from the sides of the polygon. Is there a way to define a buffer based on area or create an area of specific size (say 10000 ha for example ) around a polygon ?

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bixb0012

(to Geolink_1) 3 days ago (Show more Show less)

Does the buffer polygon around the site polygon need to be a specific shape? For example, Curtis suggested a circular buffer polygon, does that work? Would a rectangle be better, or worse?

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Shared by curtvprice

from ModelBuilder3 days ago (Show more Show less)

Model Builder Help: error 001884

I am creating a model that will do the following: segment a raw image, train a random trees classifier based on a feature class, and then classify that segmented image. The model works until the classify raster tool, that's when it fails. I think it has something to do with the locations of where I am saving the data. If I run the tool with… (Show more Show less)

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TBCons in Spatial Analyst6 days ago (Show more Show less)

Distance Between Two Point Types on Polyline ArcGIS Pro

Hi ESRI community! I'm having a bit of trouble with measuring the distance between points on a polyline on ArcGIS Pro. I have a dam layer (points) and a stream layer (polyline) and my goal is to create a raster with values along the stream that correspond to the distance from dams. Considering streams are not straight, I can't just create a… (Show more Show less)

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jtenbrink-esristaff

(to TBCons) 4 days ago (Show more Show less)

Hello Joseph: If your dam points are directly located on the streams, then a raster-based approach to this might be able to use the new 'euclidean distance with barriers' functionality released at 10.7/2.4. In this case, the sources would be the dams and the 'barriers' would be a raster representing every cell that isn't a stream cell. Your…

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PTANDER@clemson.edu_Clemson in Spatial Analyst5 days ago (Show more Show less)

Point Solar Radiation tool, hourly output for entire year

I seek to use the Point Solar Radiation tool on a DSM, but the tool parameters are limiting. I would like hourly solar radiation outputs (w/m2) for an entire year as one table: 1x 8760 values. The tool seems to lack flexibility in temporal resolution, and only allows monthly sums for an entire year (output of 12-24 values), or hourly values for a… (Show more Show less)

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SChatterjee-esristaff

in Spatial Analyst8 months ago (Show more Show less)

Introducing the new resolution preserving cell size projection method

ArcGIS Pro 2.3 and ArcMap 10.7 Spatial Analyst tools now support a new environment, the Cell Size Projection Method, to control the calculation of the output raster cell size when datasets are projected during tool execution. To learn more about projections, see Coordinate systems, projections, and transformations. In previous software versions,… (Show more Show less)

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jtenbrink-esristaff

(to fbiles_usfs) 2 weeks ago (Show more Show less)

Hi Frances: I can't think of a situation where you would prefer CU to the newer methods. If you encounter one, please let us know. Yes, we would like to make this the default at some point in the future but didn't want to do it immediately because of the potential for disrupting applications that are currently making assumptions about what the…

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sherien in Spatial Analyst5 years ago (Show more Show less)

Kriging with external drift

Hi, I'm trying to use universal Kriging (Kriging with external drift), to merge between rain gauge data and radar rainfall data. The rainfall data for both gauges and radar are a daily time series for one year. I have 10 rain-gauges to perform the merging with a radar domain which contain 483 pixels (pixel=1km2) . can you please tell me how… (Show more Show less)

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chhaihort (to sherien) 2 weeks ago (Show more Show less)

HI Sherien, Your question is what I'm doing right now, I wish you can share me some insights as currently I am working on the Kriging with External drift radar-gauge merging technique too. Your insights will help me a lot, Thank in advance

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dbh10 in Spatial Analyst2 weeks ago (Show more Show less)

Sum two rasters using maximum extent

I am trying to combine two rasters to create a weighted raster to use in some hydrology calculations. The first raster is a large region (a basin) in which I've set all the cells values to zero. The second raster was created from a set of small polygons that lie within the extent of the basin (the first raster). All the values within the… (Show more Show less)

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dbh10 (to slynch-esristaff) 2 weeks ago (Show more Show less)

Thanks Steve. I knew I was missing something like this.

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mmooreWPC in Spatial Analyst3 weeks ago (Show more Show less)

Watershed tools very slow in ArcMap 10.7.1

Has anyone else noticed this in ArcMap 10.7? I have a custom .pyt toolbox that uses snap pour point and watershed tools to create a local watershed for user input sites. For the last 3 years, it has consistently run, taking about 90 seconds each time - I've used it thousands of times. Since my upgrade to ArcMap 10.7, the custom tool now takes… (Show more Show less)

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NRajasekar-esristaff

(to mmooreWPC) 2 weeks ago (Show more Show less)

Hi Molly, I tried the Snap Pour Point and Watershed tools with your data. I'm unable to reproduce the performance issues you are encountering. For me these tools complete processing in 3.6 seconds for Snap Pour Point and 9.5 seconds for Watershed. The machine I tested on isn't that different to what you have (I have 32 GB RAM and a bit…

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