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Arc Hydro for ArcGIS Pro 2.5

DeanDjokic

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　　　ここ数年、Arc HydroをArcGIS Proプラットフォームに統合するために取り組んできました。Arc Hydro for ArcGIS Pro 2.5のリリースには、地形前処理、流域および流路の区画化、特性評価の分野で200以上のArc Hydro機能が含まれています。Arc Hydro 10.x実装の「古くからの友人」のほとんどは存在しますが、新しい機能の一部は10.xでは利用できません。　例えば、ProのArc Hydroでのみ利用可能な機械学習アプローチを用いた湿地識別に特化したツールセットがあります。Ginaのブログをご覧ください。<\/P>

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　　　また、Arc Hydro for Pro 2.5は、ArcGIS Pro 2.5のTrace Network Betaプログラムに参加することで利用可能な新しいTrace Network機能を活用しています。このコアArcGIS Pro機能により、これまで幾何ネットワークへの依存のため利用できなかったArc Hydro機能のPro実装が可能になりました。Trace Networkおよびそれに基づくArc Hydroツールのテストやレビューに興味がある場合は、archydro@esri.comまでメールを送っていただければ、Trace Network Betaプログラムへの登録を行います。<\/P>

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　　　最近「Arc Hydro – Project Development Best Practices」および特にPro向けの「Arc Hydro – ArcGIS Pro Project Startup Best Practices」ドキュメントをご覧になる機会がなかった場合は、この機会にぜひご確認ください。これら両方のドキュメントおよびArc Hydroドキュメンテーションシリーズのすべては、Arc Hydro GeoNetページで入手可能です。<\/P>

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　　　Arc Hydro Proの開発は継続しており、2.6リリースでは追加の水文学的および水理学的モデリング支援ツールとより充実したドキュメントを含める計画です。ご質問やご意見がありましたら、GeoNetページ経由または直接メールarchydro@esri.comでArc Hydroチームまでお問い合わせください。<\/P>

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Arc Hydro

DeanDjokic

:-). i might be, but if we communicate here, nobody else will benefit (and i also might not always be as responsive so you might be missing an opportunity for someone else to answer).

make sure you post it on the water resources questions board:

https://community.esri.com/t5/water-resources-questions/bd-p/water-resources-questions

that is where you will find other "water" people.

HazelOliveParmes

Thank you so much, Sir! This will be much of a help. I have already asked in different platforms but no one answers my questions, that's why I thought maybe you're the best person to ask such question.

DeanDjokic

I think you are referring to HEC-GeoHMS capability. HEC-GeoHMS is not ported to Pro. But there is a fairly simple way to do it:

Option 1.

1. Create a raster of soils (each soil type has a unique integer value).

2. Create a raster of land use (each land use has a unique integer value).

3. Use "Combine" Spatial Analyst tool to create a raster of unique combination of land use and soils.

4. Use "Reclass by Table" on the result of #3 to assign CN value to each unique combination derived in #3. The tricky part will be to develop the reclassify table. You could also use simple "Reclassify" if you want to type in values.

Option 2.

For more control, instead of using 1-3 above, once you have #1 completed, multiply it by some big round number (lets say 1000 so value of 1 becomes 1000, 2 2000, etc.) and then add that to #2. so if you had soil with value 1 and land use with value 2 at a location, the final value will be 1*1000+2 = 1002. Now you can map the 1002 to proper CN value and then use reclassify.

You should move further discussion outside of Pro 2.5 document thread. You will get more views and possibly more answers. This thread is focused on questions related to the document, not general questions.

HazelOliveParmes

I have a raster file for the soil map and vector file for the land use map. I've watched tutorials on how to generate CN Grid using ArcMap, finished all the steps except the "Generate CN Grid". I couldn't find the "Generate CN Grid" tool in ArcGIS Pro 😞

DeanDjokic

what data do you have?

HazelOliveParmes

Sir, is it possible to generate a CN Grid in ArcGIS Pro?

DeanDjokic

In Pro 2.5, Trace Network was in beta and you had to be part of the beta program to have access to that functionality. In Pro 2.6 and later, Trace Network is standard capability. You really need to upgrade your Pro to 2.6 or latter (I suggest you upgrade to 2.7 or 2.8 since Trace Network has added capabilities in those versions).

HazelOliveParmes

Hi Sir. How can I create a Hydro Network from Subwatersheds in ArcGIS Pro 2.5 if it has no Trace Network Tool? I really need some help on this 😞 Thank you

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