# Latest **URL:** https://community.naturalcapitalalliance.org/latest.md?page=1 [Latest](https://community.naturalcapitalalliance.org/latest.md) · [Categories](https://community.naturalcapitalalliance.org/categories.md) · [Tags](https://community.naturalcapitalalliance.org/tags.md) **Page:** 2 --- ## [Water Yield Models to support economic analysis](https://community.naturalcapitalalliance.org/t/water-yield-models-to-support-economic-analysis/6457)
**Author:** [@gbf22](https://community.naturalcapitalalliance.org/u/gbf22)\ **Replies:** 3\ **Last updated:** [July 14, 2026, 1:42pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-models-to-support-economic-analysis/6457 "2026-07-14T13:42:01Z")
I’m interested in calculating the total water savings (stored in freshwater features or groundwater recharge) from planting 1000HA forest. Then I would multiply water savings x shadow price (or tariff) to approximate the… --- ## [Intro NatCap - module 2 Coastal Vulnerability exercise - broken link](https://community.naturalcapitalalliance.org/t/intro-natcap-module-2-coastal-vulnerability-exercise-broken-link/6471)
**Author:** [@PriSteier](https://community.naturalcapitalalliance.org/u/PriSteier)\ **Replies:** 3\ **Last updated:** [July 14, 2026, 8:06am UTC](https://community.naturalcapitalalliance.org/t/intro-natcap-module-2-coastal-vulnerability-exercise-broken-link/6471 "2026-07-14T08:06:53Z")
Hi there, the link provided in the Coastal Vulnerability exercise is broken: https://marineapps.naturalcapitalproject.org/bahamas/index.html --- ## [NatCap Introduction training Gura - SDR in Invest 3.20 Max L Value required](https://community.naturalcapitalalliance.org/t/natcap-introduction-training-gura-sdr-in-invest-3-20-max-l-value-required/6470)
**Author:** [@PriSteier](https://community.naturalcapitalalliance.org/u/PriSteier)\ **Replies:** 1\ **Last updated:** [July 13, 2026, 2:44pm UTC](https://community.naturalcapitalalliance.org/t/natcap-introduction-training-gura-sdr-in-invest-3-20-max-l-value-required/6470 "2026-07-13T14:44:36Z")
Hi there, I just started Module 2 of the Nat Cap training. I’m trying to run Gura SDR and Invest 3.20 requires a Maximum L Value to run the model. The description of the exercise does not provide this value. Can you plea… --- ## [New MOOC and Toolkit on Implementing Natural Capital Approaches in Policy & Finance](https://community.naturalcapitalalliance.org/t/new-mooc-and-toolkit-on-implementing-natural-capital-approaches-in-policy-finance/6469)
**Author:** [@Elana-K](https://community.naturalcapitalalliance.org/u/Elana-K)\ **Replies:** 0\ **Last updated:** [July 8, 2026, 5:14pm UTC](https://community.naturalcapitalalliance.org/t/new-mooc-and-toolkit-on-implementing-natural-capital-approaches-in-policy-finance/6469 "2026-07-08T17:14:46Z")
We’re excited to share with this community a new massive open online course (or “MOOC”), Natural Capital for Development: Valuation, Investment and Policy, as well as a new Implementation Toolkit for Scaling Natural Capi… --- ## [InVEST older development versions update ssh](https://community.naturalcapitalalliance.org/t/invest-older-development-versions-update-ssh/6458)
**Author:** [@sibylles](https://community.naturalcapitalalliance.org/u/sibylles)\ **Replies:** 2\ **Last updated:** [June 23, 2026, 2:30pm UTC](https://community.naturalcapitalalliance.org/t/invest-older-development-versions-update-ssh/6458 "2026-06-23T14:30:24Z")
I need to install an older InVEST development version (3.14.2) for the comparison with our developed python pollination script. InVEST Downloads & User Guide | Natural Capital Alliance My IT security blocked the websi… --- ## [InVEST 3.20.0 Released!](https://community.naturalcapitalalliance.org/t/invest-3-20-0-released/6456)
**Author:** [@dave](https://community.naturalcapitalalliance.org/u/dave)\ **Replies:** 0\ **Last updated:** [June 12, 2026, 1:10pm UTC](https://community.naturalcapitalalliance.org/t/invest-3-20-0-released/6456 "2026-06-12T13:10:29Z")
We are excited to announce the InVEST 3.20.0 release! This minor release features three new reports for: Urban Nature Access Urban Cooling Annual Water Yield View the sample reports here. There are a lot of other qual… --- ## [Seasonal Water Yield Stream Issues](https://community.naturalcapitalalliance.org/t/seasonal-water-yield-stream-issues/6423)
**Author:** [@Livia](https://community.naturalcapitalalliance.org/u/Livia)\ **Replies:** 7\ **Last updated:** [June 10, 2026, 12:58pm UTC](https://community.naturalcapitalalliance.org/t/seasonal-water-yield-stream-issues/6423 "2026-06-10T12:58:00Z")
The model does not create the correct streams. There are sharp diagonal shards on the maps that should not be there. InVEST-seasonal\_water\_yield-log-2026-06-04–10\_20\_51.txt (82.8 KB) I have tried different DEM’s, highe… --- ## [InVEST parameter database? again](https://community.naturalcapitalalliance.org/t/invest-parameter-database-again/6454)
**Author:** [@adrianvogl](https://community.naturalcapitalalliance.org/u/adrianvogl)\ **Replies:** 2\ **Last updated:** [June 9, 2026, 12:07am UTC](https://community.naturalcapitalalliance.org/t/invest-parameter-database-again/6454 "2026-06-09T00:07:48Z")
Hello, I am looking for the old parameter database mentioned in this post from a few years ago: I’ve looked through the NatCap Data Hub but I cannot find this. To be clear, I am looking for the sheet that compiled par… --- ## [Recreation model server connection error](https://community.naturalcapitalalliance.org/t/recreation-model-server-connection-error/6419)
**Author:** [@Isabel](https://community.naturalcapitalalliance.org/u/Isabel)\ **Replies:** 4\ **Last updated:** [June 7, 2026, 6:44pm UTC](https://community.naturalcapitalalliance.org/t/recreation-model-server-connection-error/6419 "2026-06-07T18:44:07Z")
Hello, I am trying to run the InVEST Recreation model (version 3.14.2) and I keep getting a connection error to the remote server. I have tried the following: Running on university WiFi network Running on mobile hot… --- ## [Negative Values - SDR Output](https://community.naturalcapitalalliance.org/t/negative-values-sdr-output/6358)
**Author:** [@Edith\_Malemba](https://community.naturalcapitalalliance.org/u/Edith_Malemba)\ **Replies:** 5\ **Last updated:** [May 20, 2026, 10:41am UTC](https://community.naturalcapitalalliance.org/t/negative-values-sdr-output/6358 "2026-05-20T10:41:36Z")
I have run the model and I’m getting extreme negative values as per the images attached. I have investigated the input data, and they all seem fine even though they are not at the same resolution. The model did complete … --- ## [Regarding validation of model](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414)
**Author:** [@Rajesh](https://community.naturalcapitalalliance.org/u/Rajesh)\ **Replies:** 4\ **Last updated:** [May 19, 2026, 11:23am UTC](https://community.naturalcapitalalliance.org/t/regarding-validation-of-model/6414 "2026-05-19T11:23:49Z")
I have run InVEST SDR model and i get output like total sediment export. Now i have problem with validation from where i validate model output values is there any specific field experiment we have to set or any other way… --- ## [Soil Hydrologic Groups in seasonal water yield model, for Brazil](https://community.naturalcapitalalliance.org/t/soil-hydrologic-groups-in-seasonal-water-yield-model-for-brazil/5702)
**Author:** [@Lisiane](https://community.naturalcapitalalliance.org/u/Lisiane)\ **Replies:** 4\ **Last updated:** [May 19, 2026, 8:20am UTC](https://community.naturalcapitalalliance.org/t/soil-hydrologic-groups-in-seasonal-water-yield-model-for-brazil/5702 "2026-05-19T08:20:30Z")
I would like to know if there is another database available on Hydrological Soil Groups for Brazil. I am using HYSOGs250m, due to the resolution, only one soil type is displayed. --- ## [Could not convert string to float: ''](https://community.naturalcapitalalliance.org/t/could-not-convert-string-to-float/6411)
**Author:** [@Dimple](https://community.naturalcapitalalliance.org/u/Dimple)\ **Replies:** 7\ **Last updated:** [May 18, 2026, 1:29pm UTC](https://community.naturalcapitalalliance.org/t/could-not-convert-string-to-float/6411 "2026-05-18T13:29:24Z")
When I use this module to calculate water purificationIt has never been successful.Always show could not convert string to float:＂I revised the biophysics table again and checked that it was out of control.And I download… --- ## [Unable to show full area](https://community.naturalcapitalalliance.org/t/unable-to-show-full-area/6413)
**Author:** [@Dimple](https://community.naturalcapitalalliance.org/u/Dimple)\ **Replies:** 1\ **Last updated:** [May 18, 2026, 1:08pm UTC](https://community.naturalcapitalalliance.org/t/unable-to-show-full-area/6413 "2026-05-18T13:08:54Z")
When the nutrient delivery ratio module is used for calculating the water quality purificationWhen the nutrient transport ratio module is used to calculate the water quality purification, the output result is inconsisten… --- ## [HRA - Exponential decay buffer distance](https://community.naturalcapitalalliance.org/t/hra-exponential-decay-buffer-distance/6359)
**Author:** [@Glomo93](https://community.naturalcapitalalliance.org/u/Glomo93)\ **Replies:** 2\ **Last updated:** [May 12, 2026, 2:55pm UTC](https://community.naturalcapitalalliance.org/t/hra-exponential-decay-buffer-distance/6359 "2026-05-12T14:55:27Z")
Hello, I am running an issue on the HRA model (InVEST version 3.17.0): for exponential decay, the risk outputs do not change by changing the decay buffer distance of a particular stressor. I’ve seen that this was an iss… --- ## [InVEST Workbench for Linux?](https://community.naturalcapitalalliance.org/t/invest-workbench-for-linux/6406)
**Author:** [@davdd](https://community.naturalcapitalalliance.org/u/davdd)\ **Replies:** 1\ **Last updated:** [May 12, 2026, 2:43pm UTC](https://community.naturalcapitalalliance.org/t/invest-workbench-for-linux/6406 "2026-05-12T14:43:02Z")
Hello I’m very new here, so I apologize if the discussion exists somewhere and I simply couldn’t find it. But I noticed in the GitHub repo there are binaries published for Windows and MacOS. As well there are seemingly… --- ## [InVEST Workbench 3.19.0 crashes on startup (Windows)](https://community.naturalcapitalalliance.org/t/invest-workbench-3-19-0-crashes-on-startup-windows/6395)
**Author:** [@mkend](https://community.naturalcapitalalliance.org/u/mkend)\ **Replies:** 5\ **Last updated:** [May 12, 2026, 2:26pm UTC](https://community.naturalcapitalalliance.org/t/invest-workbench-3-19-0-crashes-on-startup-windows/6395 "2026-05-12T14:26:38Z")
Hello, The InVEST 3.19.0 Workbench is on my computer (Windows) but when I click on it, the logo appears then disappears but it never opens. Task Manager says it is running though. Thanks! Upload the logfile using the … --- ## [Workbench 3.19.0 does not start](https://community.naturalcapitalalliance.org/t/workbench-3-19-0-does-not-start/6404)
**Author:** [@Glomo93](https://community.naturalcapitalalliance.org/u/Glomo93)\ **Replies:** 3\ **Last updated:** [May 12, 2026, 1:22pm UTC](https://community.naturalcapitalalliance.org/t/workbench-3-19-0-does-not-start/6404 "2026-05-12T13:22:29Z")
Hello everyone. I am runing with the same issue. I was working on v3.17.0 and now v3.19.0. I tried to fix the issue following the instructions above (also forcing the port on the config file), as well as trying by mysel… --- ## [What is the unit of MAX\_DIST](https://community.naturalcapitalalliance.org/t/what-is-the-unit-of-max-dist/5980)
**Author:** [@sunflower](https://community.naturalcapitalalliance.org/u/sunflower)\ **Replies:** 3\ **Last updated:** [May 11, 2026, 5:48pm UTC](https://community.naturalcapitalalliance.org/t/what-is-the-unit-of-max-dist/5980 "2026-05-11T17:48:17Z")
In the habitat quality module of INVEST 3.15.1, is the unit of ​​MAX\_DIST​ ​ in the threat settings ​\*\*meters (m)​​? I noticed that previous tutorials used ​​kilometers (km)​ ​. --- ## [Workbench does not run after startup](https://community.naturalcapitalalliance.org/t/workbench-does-not-run-after-startup/4542)
**Author:** [@frederick](https://community.naturalcapitalalliance.org/u/frederick)\ **Replies:** 17\ **Last updated:** [October 3, 2024, 4:45am UTC](https://community.naturalcapitalalliance.org/t/workbench-does-not-run-after-startup/4542 "2024-10-03T04:45:41Z")
new post: Hi James I’m a newbie to the software and needed to check my windows 10 install as I can’t seem to get it running. version 3.14.1. I have downloaded and installed the software but it doesn’t run after start up… --- ## [ERROR exception encountered in raster\_calculator](https://community.naturalcapitalalliance.org/t/error-exception-encountered-in-raster-calculator/6389)
**Author:** [@Melody](https://community.naturalcapitalalliance.org/u/Melody)\ **Replies:** 6\ **Last updated:** [May 10, 2026, 2:22pm UTC](https://community.naturalcapitalalliance.org/t/error-exception-encountered-in-raster-calculator/6389 "2026-05-10T14:22:27Z")
Hi, I tried to run SDR a few times. For the first few times that failed, I kept receiving: IndexError: index 4 is out of bounds for axis 0 with size 4; then I tried to modify the DEM model in ArcGIS Pro by filling it. Th… --- ## [Coastal Blue Carbon InVEST Model output issue](https://community.naturalcapitalalliance.org/t/coastal-blue-carbon-invest-model-output-issue/6394)
**Author:** [@Isabella\_Smith](https://community.naturalcapitalalliance.org/u/Isabella_Smith)\ **Replies:** 4\ **Last updated:** [May 5, 2026, 10:17pm UTC](https://community.naturalcapitalalliance.org/t/coastal-blue-carbon-invest-model-output-issue/6394 "2026-05-05T22:17:21Z")
Hi, My name is Isabella Smith, and I am trying to get results from the Coastal Blue Carbon InVEST model for my honors capstone research paper on kelp in MA; however, I have encountered an issue with the output results f… --- ## [Urban Nature Access Tutorial](https://community.naturalcapitalalliance.org/t/urban-nature-access-tutorial/6390)
**Author:** [@lcostado](https://community.naturalcapitalalliance.org/u/lcostado)\ **Replies:** 1\ **Last updated:** [May 4, 2026, 8:12pm UTC](https://community.naturalcapitalalliance.org/t/urban-nature-access-tutorial/6390 "2026-05-04T20:12:28Z")
Hi everyone, I was wondering if there are any tutorials or workshops available on the Urban Nature Access Model. I’ve come across several general resources online, but I haven’t been able to find anything specific to th… --- ## [Unexpected results in InVEST Coastal Vulnerability model when comparing SLR scenarios (SSP 1-2.6, 2-4.5)](https://community.naturalcapitalalliance.org/t/unexpected-results-in-invest-coastal-vulnerability-model-when-comparing-slr-scenarios-ssp-1-2-6-2-4-5/6393)
**Author:** [@marianamendesm](https://community.naturalcapitalalliance.org/u/marianamendesm)\ **Replies:** 1\ **Last updated:** [May 4, 2026, 2:06pm UTC](https://community.naturalcapitalalliance.org/t/unexpected-results-in-invest-coastal-vulnerability-model-when-comparing-slr-scenarios-ssp-1-2-6-2-4-5/6393 "2026-05-04T14:06:30Z")
Hi everyone, I am developing a project to quantify the global coastal protection potential provided by mangroves under sea-level rise (SLR) scenarios. I am using the InVEST Coastal Vulnerability model for this analysis. … --- ## [Forest Edge Effect Model Overestimates Carbon Storage](https://community.naturalcapitalalliance.org/t/forest-edge-effect-model-overestimates-carbon-storage/6338)
**Author:** [@Amariles](https://community.naturalcapitalalliance.org/u/Amariles)\ **Replies:** 1\ **Last updated:** [April 29, 2026, 6:01pm UTC](https://community.naturalcapitalalliance.org/t/forest-edge-effect-model-overestimates-carbon-storage/6338 "2026-04-29T18:01:28Z")
Hi! I’m running the Forest Carbon Edge Effect model, and when I exclude edge effects, all the data aligns correctly with the Carbon Storage layer and with my manual carbon stock calculations. However, when I include edge… --- ## [UFRM: ValueError: invalid entry in choice array](https://community.naturalcapitalalliance.org/t/ufrm-valueerror-invalid-entry-in-choice-array/6388)
**Author:** [@Phoebe](https://community.naturalcapitalalliance.org/u/Phoebe)\ **Replies:** 2\ **Last updated:** [April 29, 2026, 12:19pm UTC](https://community.naturalcapitalalliance.org/t/ufrm-valueerror-invalid-entry-in-choice-array/6388 "2026-04-29T12:19:10Z")
What is the issue or question you have? When trying to run the UFRM tool I keep getting the same error What do you expect to happen? I expect it to run without issues as my soil raster data only contains values 1-4 but … --- ## [Metodological viability: Downscaling population projections from coarse administrative units to grid level for Urban Nature Access model](https://community.naturalcapitalalliance.org/t/metodological-viability-downscaling-population-projections-from-coarse-administrative-units-to-grid-level-for-urban-nature-access-model/6374)
**Author:** [@diegovargas](https://community.naturalcapitalalliance.org/u/diegovargas)\ **Replies:** 4\ **Last updated:** [April 25, 2026, 8:40pm UTC](https://community.naturalcapitalalliance.org/t/metodological-viability-downscaling-population-projections-from-coarse-administrative-units-to-grid-level-for-urban-nature-access-model/6374 "2026-04-25T20:40:31Z")
Hello everyone, I am currently conducting research on socio-environmental justice and the distribution of urban ecosystem services. I am using the Urban Nature Access model to analyze future scenarios for 2030 and 2035… --- ## [InVEST 3.19.0 Introduces New Urban Mental Health Model](https://community.naturalcapitalalliance.org/t/invest-3-19-0-introduces-new-urban-mental-health-model/6382)
**Author:** [@csimpson](https://community.naturalcapitalalliance.org/u/csimpson)\ **Replies:** 0\ **Last updated:** [April 21, 2026, 7:03pm UTC](https://community.naturalcapitalalliance.org/t/invest-3-19-0-introduces-new-urban-mental-health-model/6382 "2026-04-21T19:03:25Z")
We are excited to announce the release of InVEST 3.19.0, which includes the following changes: InVEST introduces a new model: Urban Mental Health. This model estimates the number of preventable cases (and optionally, … --- ## [My data are returning NAN in the water yield model](https://community.naturalcapitalalliance.org/t/my-data-are-returning-nan-in-the-water-yield-model/6377)
**Author:** [@Almeida\_pdro](https://community.naturalcapitalalliance.org/u/Almeida_pdro)\ **Replies:** 3\ **Last updated:** [April 17, 2026, 10:36pm UTC](https://community.naturalcapitalalliance.org/t/my-data-are-returning-nan-in-the-water-yield-model/6377 "2026-04-17T22:36:41Z")
I can’t figure out what’s wrong with my data that causes the results to always be NAN for \`wyield\_mn\` and \`wyield\_vol\`. I’ve already removed all the zero values from my rasters and reviewed the biophysical table, but I’m… --- ## [Recreation and Tourism Model: Blocked Server, what is the return port range?](https://community.naturalcapitalalliance.org/t/recreation-and-tourism-model-blocked-server-what-is-the-return-port-range/6375)
**Author:** [@Kylork](https://community.naturalcapitalalliance.org/u/Kylork)\ **Replies:** 1\ **Last updated:** [April 14, 2026, 2:58pm UTC](https://community.naturalcapitalalliance.org/t/recreation-and-tourism-model-blocked-server-what-is-the-return-port-range/6375 "2026-04-14T14:58:13Z")
What is the issue or question you have? My institution’s firewall is blocking my remote connection to the 34.56.65.180 server to pull PUD and TUD data from the recreation and tourism model. My department IT asked if anyo… [Previous page](https://community.naturalcapitalalliance.org/latest.md) [Next page](https://community.naturalcapitalalliance.org/latest.md?page=2)