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Questions tagged [nhd]

For questions about the National Hydrology Dataset (NHD) by the US Geological Survey (USGS)

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NHD's description of a river differs depending on which state it is in

So I downloaded the NHD shapefiles for both Texas and Arkansas rivers from here: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Hydrography/NHD/State/Shape/ I then pulled the route ...
neubert's user avatar
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3 votes
1 answer
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Why would the NHD have wrong information / how to correct it?

According to the National Hydrography Dataset, the Blanco River in Texas consists of 108.3km of "artificial paths", 36.677km of it is a perennial river and 2.297km of it is an intermittent ...
neubert's user avatar
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0 votes
1 answer
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NHD HR Dataset looks corrupt when I query intermittent and ephemeral streams

I am trying to create a dataset for dry stream observations using NHD HR Dataset. But when I select only the streams with Feature Code "Intermittent" or "Ephemeral" it returns a ...
puredata's user avatar
  • 501
1 vote
1 answer
196 views

Missing results when using the Identify Tool in QGIS

This is my first time using QGIS and I am working on the NHD Plus HR shapefile for the Connecticut River watershed. Within this, I am trying to use the identity tool to identify the NHDPlusID ...
Derrick Vaughn's user avatar
1 vote
1 answer
194 views

Stream order data for Canadian streams

I am researching streams and I want to select 1st-3rd order streams in North America. The NHD Plus V2 Flowline Network contains stream order (Strahler) in the packaged data and I was wondering if ...
QuestGIS's user avatar
0 votes
1 answer
257 views

Extending points upstream to create stream reach using ArcGIS Pro

I'm a PhD student tasked with analyzing a very large set of fisheries surveys conducted within discrete stream reaches. Unfortunately, the only information provided on location of each reach is (a) ...
stupid_grad_student's user avatar
3 votes
1 answer
244 views

Working with the FlowDir in the national hydography dataset

In the National Hydrography Dataset there's a FlowDir field. According to https://www.townofnewipswich.org/sites/g/files/vyhlif4766/f/uploads/dataset_dictionary.pdf the two possible values for FlowDir ...
neubert's user avatar
  • 360
0 votes
3 answers
268 views

Tracing Upstream Accumulation from a polygon start

I am new to ESRI products (I typically use QGIS), but am using it in order to analyze upstream/downstream flowlines with the National Hydrography Dataset (specifically, HUC-4 mapping units for NHDPLUS ...
Laura's user avatar
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1 vote
1 answer
88 views

NHD Utilities (National Hydrography Dataset) for newer versions of ArcGIS

Applied GIS ArcGIS utility question here that maybe somebody stumbles across. I am using the United States Geological Survey National Hydrography Dataset dataset - rivers, lakes, flow directions, ...
NW_Photo_Laureate's user avatar
12 votes
2 answers
595 views

Accessing watershed boundary for lakes in R

I have had success accessing unique database IDs and polygons for various lakes in the US. I'm now looking to get polygons for the watersheds associated with these lakes, but have stumbled a bit. ...
Vint's user avatar
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0 votes
1 answer
59 views

Using Spatial Join to join geologic features to polylines

I want to spatially join polygons (geologic features, major aquifers) to where the NHD polylines (rivers/streams) fall. I want to be able to click on a polyline and see what geologic feature or major ...
Stephanie George's user avatar
1 vote
0 answers
36 views

Remeasuring portion of NHD route system?

How do I remeasure a portion of the NHD route system? So that it measures continuous through each confluence, that is, if 0 station is at the first confluence then when we reach the next confluence it ...
TDurden's user avatar
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1 vote
2 answers
218 views

Unable to create geometric network on NHDFlowline - invalid enabled field type

I need to create a geometric network in order to perform a downstream trace on a NHDFlowline data in my ArcGIS. I have two flowline layers on one of them I am able to create a geometric network and ...
Dominik_GIS's user avatar
0 votes
1 answer
375 views

NHD layers won't redraw in ArcGIS 10.1 at small scale?

If I am already zoomed in to a smaller scale and then add the NHD Hydrography dataset (already clipped to just Texas), I can see all the NHDFlowlines, NHDAreas, and other layers that come in the ...
Laura's user avatar
  • 67
3 votes
2 answers
20k views

Calculate line distances inside of polygons using ArcGIS for Desktop?

I'm working with two data sets: NHD polyline stream layer for my entire state HUC Watershed boundary Polygons for the entire state I am looking for a way to calculate the total length of streams ...
user28309's user avatar
  • 147
0 votes
1 answer
59 views

1:250 streams data - USA wide - where can I find it?

I have 1:250 streams data for a few western states. I find this scale to be excellent in many settings as base hydro data. I have never been able to find a USA or better yet, NA wide dataset of this ...
jotamon's user avatar
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5 votes
2 answers
1k views

Using QGIS with National Hydrography Dataset (NHD)? [closed]

I'm a trying to learn QGIS. I am trying to download and open with QGIS 2.0.1 state-specific data from the USGS NHD Viewer, and i think i have at least managed to do the downloading correctly. For ...
pitcherofnectar's user avatar
2 votes
2 answers
236 views

How to begin creating a linear referenced gdb with NHD

Our legacy fish distribution data contains data by reaches. Reaches are arbitrary locations on streams, eg. reach 1, 2, 3. Each reach's from-to are known, but not by x,y coords. An example is 'brown ...
Gary Ogborn's user avatar
1 vote
0 answers
50 views

create table with IDs for all arcs downstream of all others

I need to summarize downstream information associated with each arc in an NHD dataset. I have a table with the downstream ID for stream segment but am not sure how to get all of the downstream IDs. ...
Jodi Whittier's user avatar
2 votes
1 answer
546 views

Does the National Hydrology Dataset geodatabase work in qgis? [duplicate]

I am running QGIS 1.8 on a windows xp pc and trying to put the USGS National Hydrology Dataset (more info herefor Oregon into a project. I try to "add vector data", using directory option then ...
Oregonian's user avatar
  • 158
1 vote
0 answers
118 views

How to get partial polyline from stream trace?

I am creating SOE to do stream trace. That works fine. The geometric network only have NHD flowline. The problem is that tracing result return whole flow line. I am wondering if the result only return ...
user14305's user avatar