# Science, Research & Data

**URL:** https://community.naturalcapitalalliance.org/c/science-research/7.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

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## [Energy Consumption](https://community.naturalcapitalalliance.org/t/energy-consumption/6257)

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**Author:** [@ed\_T](https://community.naturalcapitalalliance.org/u/ed_T)\
**Replies:** 2\
**Last updated:** [November 15, 2025, 8:32am UTC](https://community.naturalcapitalalliance.org/t/energy-consumption/6257 "2025-11-15T08:32:03Z")

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Dear team, I hope you all are doing well working on the Urban Cooling model, but I haven’t been able to find concrete data for the Energy Consumption Table and working in one of the city in Germany. Could you please expl…

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## [inVEST for hybrid shorelines](https://community.naturalcapitalalliance.org/t/invest-for-hybrid-shorelines/6255)

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**Author:** [@S.Song](https://community.naturalcapitalalliance.org/u/S.Song)\
**Replies:** 2\
**Last updated:** [November 11, 2025, 10:03am UTC](https://community.naturalcapitalalliance.org/t/invest-for-hybrid-shorelines/6255 "2025-11-11T10:03:37Z")

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Hi, I’m new to inVEST and my team wants to use the coastal vulnerability model (CVM) on hybrid shore for coastal protection. However, CVM geomorphology categories do not include hybrid solutions, such as seawalls with ma…

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## [Differences in SDR ouptuts for two scenarios seem unrealistic](https://community.naturalcapitalalliance.org/t/differences-in-sdr-ouptuts-for-two-scenarios-seem-unrealistic/6253)

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**Author:** [@efasamoah](https://community.naturalcapitalalliance.org/u/efasamoah)\
**Replies:** 1\
**Last updated:** [November 7, 2025, 2:17pm UTC](https://community.naturalcapitalalliance.org/t/differences-in-sdr-ouptuts-for-two-scenarios-seem-unrealistic/6253 "2025-11-07T14:17:12Z")

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Hi, I have run SDR models for two land-use scenarios: the current land use (s0) and a hypothetical land-use scenario (s1) where all forests have been cleared. This means that other classes are retained unchanged. I comp…

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## [Evapotranspiration raster for UCM](https://community.naturalcapitalalliance.org/t/evapotranspiration-raster-for-ucm/6244)

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**Author:** [@ed\_T](https://community.naturalcapitalalliance.org/u/ed_T)\
**Replies:** 6\
**Last updated:** [November 1, 2025, 6:38am UTC](https://community.naturalcapitalalliance.org/t/evapotranspiration-raster-for-ucm/6244 "2025-11-01T06:38:27Z")

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Hi all, I’m working on an urban heat island mitigation study using the InVEST Urban Cooling Model, and I’d appreciate some feedback or suggestions. :white\_check\_mark: What I’ve done so far: I created a biophysical t…

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## [Creating new Wind and Wave data for Coastal Vulnerability Model](https://community.naturalcapitalalliance.org/t/creating-new-wind-and-wave-data-for-coastal-vulnerability-model/5996)

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**Author:** [@kevin.walsh](https://community.naturalcapitalalliance.org/u/kevin.walsh)\
**Replies:** 10\
**Last updated:** [October 23, 2025, 1:26pm UTC](https://community.naturalcapitalalliance.org/t/creating-new-wind-and-wave-data-for-coastal-vulnerability-model/5996 "2025-10-23T13:26:16Z")

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I’m trying to create my own wind and wave data for a Coastal Vulnerability model, starting by using ERA5 time series data for the daily maximum of wind from 2019-2024. I’ve read through the previous forum posts about t…

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## [Access to dataset 'coastal risk reduction' and 'nature access' and visualization on QGIS](https://community.naturalcapitalalliance.org/t/access-to-dataset-coastal-risk-reduction-and-nature-access-and-visualization-on-qgis/6220)

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**Author:** [@simone.guazzotti](https://community.naturalcapitalalliance.org/u/simone.guazzotti)\
**Replies:** 6\
**Last updated:** [October 8, 2025, 2:12am UTC](https://community.naturalcapitalalliance.org/t/access-to-dataset-coastal-risk-reduction-and-nature-access-and-visualization-on-qgis/6220 "2025-10-08T02:12:53Z")

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Hi everyone ! I am Simone and I would like to ask how to access and visualize correctly in QGIS the ‘coastal risk reduction for coastal populations under potential natural vegetation’ and ‘nature access’ database (found…

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## [How to calculate Z parameter](https://community.naturalcapitalalliance.org/t/how-to-calculate-z-parameter/6224)

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**Author:** [@MarieEveC](https://community.naturalcapitalalliance.org/u/MarieEveC)\
**Replies:** 2\
**Last updated:** [October 8, 2025, 12:27am UTC](https://community.naturalcapitalalliance.org/t/how-to-calculate-z-parameter/6224 "2025-10-08T00:27:12Z")

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Hi! I keep encountering problems while trying to figure out the value of Z parameter for my Annual Water Yield model. Here’s what I have done yet and the data I’m using: I used the ISRIC SoilGrids 2017 AWC data and us…

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## [Alternatives for downscaling worldclim data](https://community.naturalcapitalalliance.org/t/alternatives-for-downscaling-worldclim-data/6222)

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**Author:** [@Kleber](https://community.naturalcapitalalliance.org/u/Kleber)\
**Replies:** 2\
**Last updated:** [October 3, 2025, 10:34pm UTC](https://community.naturalcapitalalliance.org/t/alternatives-for-downscaling-worldclim-data/6222 "2025-10-03T22:34:36Z")

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Hello, everyone! I am running the Seasonal Water Yield model for a very large area in Brazil that contains several basins. I reprojected the 1000x1000-meter evapotranspiration and precipitation rasters from Wordclim to…

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## [Subsurface data in NDR](https://community.naturalcapitalalliance.org/t/subsurface-data-in-ndr/6201)

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**Author:** [@h.kazmi](https://community.naturalcapitalalliance.org/u/h.kazmi)\
**Replies:** 2\
**Last updated:** [September 25, 2025, 2:34pm UTC](https://community.naturalcapitalalliance.org/t/subsurface-data-in-ndr/6201 "2025-09-25T14:34:33Z")

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Hello everyone. I want to run the NDR model, but I don’t know what numbers I should set for these two alternatives. 1- Subsurface Critical Length and 2- Subsurface Maximum Retention Efficiency. For both nitrogen and…

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## [Tutorial videos](https://community.naturalcapitalalliance.org/t/tutorial-videos/6203)

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**Author:** [@h.kazmi](https://community.naturalcapitalalliance.org/u/h.kazmi)\
**Replies:** 2\
**Last updated:** [September 22, 2025, 5:51pm UTC](https://community.naturalcapitalalliance.org/t/tutorial-videos/6203 "2025-09-22T17:51:05Z")

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Hello everyone. Are there any tutorial videos for each of the InVEST models? I searched on Google but couldn’t find anything.

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## [Soil erodibility - convert to standard units before using?](https://community.naturalcapitalalliance.org/t/soil-erodibility-convert-to-standard-units-before-using/6183)

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**Author:** [@hkarimi](https://community.naturalcapitalalliance.org/u/hkarimi)\
**Replies:** 8\
**Last updated:** [September 11, 2025, 6:40pm UTC](https://community.naturalcapitalalliance.org/t/soil-erodibility-convert-to-standard-units-before-using/6183 "2025-09-11T18:40:25Z")

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Hi all, I am currently using the SDR model in two regions of the United States and have a question about the soil erosivity input. I found a 30 m resolution soil erosivity dataset for the U.S. (please see here; ArcGIS )…

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## [Calibrating and Validating the InVEST NDR Model in Data-Scarce Regions](https://community.naturalcapitalalliance.org/t/calibrating-and-validating-the-invest-ndr-model-in-data-scarce-regions/6191)

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**Author:** [@Mariam](https://community.naturalcapitalalliance.org/u/Mariam)\
**Replies:** 0\
**Last updated:** [September 8, 2025, 6:25pm UTC](https://community.naturalcapitalalliance.org/t/calibrating-and-validating-the-invest-ndr-model-in-data-scarce-regions/6191 "2025-09-08T18:25:27Z")

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Dear NatCap Community, I am excited to share that our new paper has just been published: Using machine learning for long-term calibration and validation of water quality ecosystem service models in data-scarce regions. …

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## [SDR results at different resolutions](https://community.naturalcapitalalliance.org/t/sdr-results-at-different-resolutions/6190)

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**Author:** [@BrynZA](https://community.naturalcapitalalliance.org/u/BrynZA)\
**Replies:** 1\
**Last updated:** [September 8, 2025, 5:19pm UTC](https://community.naturalcapitalalliance.org/t/sdr-results-at-different-resolutions/6190 "2025-09-08T17:19:36Z")

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Hi all, I am running the SDR model for a basin at two different resolutions (30m and 90m). While I’d expect to get somewhat different results, the difference in sediment export is quite large, and I’m wondering if a gre…

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## [Question regarding the interpretation of the UHI\_max parameter in InVEST Urban Cooling](https://community.naturalcapitalalliance.org/t/question-regarding-the-interpretation-of-the-uhi-max-parameter-in-invest-urban-cooling/6177)

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**Author:** [@jv\_martinelli](https://community.naturalcapitalalliance.org/u/jv_martinelli)\
**Replies:** 1\
**Last updated:** [September 3, 2025, 3:08pm UTC](https://community.naturalcapitalalliance.org/t/question-regarding-the-interpretation-of-the-uhi-max-parameter-in-invest-urban-cooling/6177 "2025-09-03T15:08:21Z")

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I am writing to request a clarification regarding the interpretation of the Urban Cooling model’s outputs. My understanding from the documentation is that the maximum possible temperature reduction (ΔT) the model can si…

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## [Carbon storage and sequestration model output](https://community.naturalcapitalalliance.org/t/carbon-storage-and-sequestration-model-output/6173)

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**Author:** [@danesh](https://community.naturalcapitalalliance.org/u/danesh)\
**Replies:** 5\
**Last updated:** [September 3, 2025, 1:52pm UTC](https://community.naturalcapitalalliance.org/t/carbon-storage-and-sequestration-model-output/6173 "2025-09-03T13:52:08Z")

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Dear users of InVEST, Today I have successfully run the carbon storage and sequestration module. I have got some rasters which have only low and high values. By the symbology of ArcGIS, I couldn’t classify them. I want t…

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## [No data in SDR and NDR](https://community.naturalcapitalalliance.org/t/no-data-in-sdr-and-ndr/6174)

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**Author:** [@h.kazmi](https://community.naturalcapitalalliance.org/u/h.kazmi)\
**Replies:** 3\
**Last updated:** [August 29, 2025, 6:38pm UTC](https://community.naturalcapitalalliance.org/t/no-data-in-sdr-and-ndr/6174 "2025-08-29T18:38:30Z")

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Hello everyone. I ran the NDR model and the SDR, and I was very careful. But in the output of the models it shows no data in maps. I also checked the DEM map. But I did not find the answer. Thanks

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## [Urban flood mitigation](https://community.naturalcapitalalliance.org/t/urban-flood-mitigation/6168)

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**Author:** [@Eshetu](https://community.naturalcapitalalliance.org/u/Eshetu)\
**Replies:** 4\
**Last updated:** [August 29, 2025, 7:59am UTC](https://community.naturalcapitalalliance.org/t/urban-flood-mitigation/6168 "2025-08-29T07:59:01Z")

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Dear Scholar, I am currently working on an urban flood risk mitigation model. My runoff retention results range from 16 to 135 m³/m², while the flood volume ranges from 0 to 132.16 m³/m². My question is regarding the m…

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## [Average Runoff Proxy (number, optional) parameter](https://community.naturalcapitalalliance.org/t/average-runoff-proxy-number-optional-parameter/6156)

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**Author:** [@Eshetu](https://community.naturalcapitalalliance.org/u/Eshetu)\
**Replies:** 2\
**Last updated:** [August 22, 2025, 7:17am UTC](https://community.naturalcapitalalliance.org/t/average-runoff-proxy-number-optional-parameter/6156 "2025-08-22T07:17:16Z")

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Dear scholars, I ran the InVEST model leaving the Average Runoff Proxy (number, optional) parameter empty. However, to maintain a consistent reference for the runoff proxy index, specifying a fixed average value could e…

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## [Exposure, and no habitat outputs overlapping results](https://community.naturalcapitalalliance.org/t/exposure-and-no-habitat-outputs-overlapping-results/6151)

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**Author:** [@n-marine](https://community.naturalcapitalalliance.org/u/n-marine)\
**Replies:** 7\
**Last updated:** [August 21, 2025, 5:41pm UTC](https://community.naturalcapitalalliance.org/t/exposure-and-no-habitat-outputs-overlapping-results/6151 "2025-08-21T17:41:54Z")

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Hi there I reran my model with some updated inputs. I noticed my overall exposure and exposure without habitats show the exact same colours for the shore points. I’m not sure why that is. Anyone know what could have cau…

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## [SWY - monthly local recharge values](https://community.naturalcapitalalliance.org/t/swy-monthly-local-recharge-values/6153)

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**Author:** [@as1252](https://community.naturalcapitalalliance.org/u/as1252)\
**Replies:** 4\
**Last updated:** [August 21, 2025, 3:13pm UTC](https://community.naturalcapitalalliance.org/t/swy-monthly-local-recharge-values/6153 "2025-08-21T15:13:23Z")

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Hello there :slight\_smile: I am currently working with the seasonal water yield model and I am trying to compare the local recharge output values with groundwater recharge values from another ressource. I know the value…

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## [Model knows its an island, How?](https://community.naturalcapitalalliance.org/t/model-knows-its-an-island-how/6164)

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**Author:** [@n-marine](https://community.naturalcapitalalliance.org/u/n-marine)\
**Replies:** 0\
**Last updated:** [August 19, 2025, 5:49am UTC](https://community.naturalcapitalalliance.org/t/model-knows-its-an-island-how/6164 "2025-08-19T05:49:24Z")

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Hi there So results from my model show one side of my island (which is facing the mainland) to be low in exposure while the North to North west side is high in exposure. Im trying to figure out how the model knows this …

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## [CV model: present or future?](https://community.naturalcapitalalliance.org/t/cv-model-present-or-future/6155)

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**Author:** [@n-marine](https://community.naturalcapitalalliance.org/u/n-marine)\
**Replies:** 2\
**Last updated:** [August 19, 2025, 5:37am UTC](https://community.naturalcapitalalliance.org/t/cv-model-present-or-future/6155 "2025-08-19T05:37:04Z")

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Hi there I wanted clarification on if the coastal vulnerability model shows us what the exposure is in current conditions (the present), or is if it for future intense events. Thanks N

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## [Unit conversion](https://community.naturalcapitalalliance.org/t/unit-conversion/6160)

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**Author:** [@twn](https://community.naturalcapitalalliance.org/u/twn)\
**Replies:** 1\
**Last updated:** [August 18, 2025, 1:42pm UTC](https://community.naturalcapitalalliance.org/t/unit-conversion/6160 "2025-08-18T13:42:57Z")

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I want to know what the units of the maximum and average values are when the output results of the three modules of water production, soil retention and carbon sequestration are opened with GIS software. The size of all …

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## [Urban cooling in climate change scenarios](https://community.naturalcapitalalliance.org/t/urban-cooling-in-climate-change-scenarios/5989)

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**Author:** [@gabbmdn](https://community.naturalcapitalalliance.org/u/gabbmdn)\
**Replies:** 2\
**Last updated:** [August 15, 2025, 3:55pm UTC](https://community.naturalcapitalalliance.org/t/urban-cooling-in-climate-change-scenarios/5989 "2025-08-15T15:55:21Z")

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Hi guys! I’m working on modeling urban heat islands (UHIs) for both current and future temperature scenarios. However, one of the inputs is the UHI effect itself. How can I estimate or project the UHI effect under futur…

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## [Seasonal QF Sum Greater Than Annual QF in InVEST Output](https://community.naturalcapitalalliance.org/t/seasonal-qf-sum-greater-than-annual-qf-in-invest-output/6152)

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**Author:** [@abir](https://community.naturalcapitalalliance.org/u/abir)\
**Replies:** 2\
**Last updated:** [August 13, 2025, 5:17pm UTC](https://community.naturalcapitalalliance.org/t/seasonal-qf-sum-greater-than-annual-qf-in-invest-output/6152 "2025-08-13T17:17:06Z")

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I am working with QuickFlow (QF) outputs from the InVEST Seasonal Water Yield model. I have 12 monthly QF raster outputs as well as an annual QF raster produced by the model. My goal is to create seasonal QF rasters fo…

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## [Why there is nodata area in the result of NDR?](https://community.naturalcapitalalliance.org/t/why-there-is-nodata-area-in-the-result-of-ndr/6132)

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**Author:** [@Momo1](https://community.naturalcapitalalliance.org/u/Momo1)\
**Replies:** 1\
**Last updated:** [August 8, 2025, 1:18pm UTC](https://community.naturalcapitalalliance.org/t/why-there-is-nodata-area-in-the-result-of-ndr/6132 "2025-08-08T13:18:07Z")

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I made a buffer in elevation data, but there was still nodata area in the result of NDR. Why does this happens? How to solve it? Can I assign zero to the nodata area?

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## [Biophysical table for the land use classes?](https://community.naturalcapitalalliance.org/t/biophysical-table-for-the-land-use-classes/6127)

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**Author:** [@ed\_T](https://community.naturalcapitalalliance.org/u/ed_T)\
**Replies:** 4\
**Last updated:** [August 5, 2025, 5:00pm UTC](https://community.naturalcapitalalliance.org/t/biophysical-table-for-the-land-use-classes/6127 "2025-08-05T17:00:00Z")

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Dear team how we define the biophysical table for the land use classes?

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## [Values from the global soil-erodibility (K) datasets on the NatCap Data Hub seem low](https://community.naturalcapitalalliance.org/t/values-from-the-global-soil-erodibility-k-datasets-on-the-natcap-data-hub-seem-low/6036)

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**Author:** [@lukezw](https://community.naturalcapitalalliance.org/u/lukezw)\
**Replies:** 5\
**Last updated:** [August 5, 2025, 1:52pm UTC](https://community.naturalcapitalalliance.org/t/values-from-the-global-soil-erodibility-k-datasets-on-the-natcap-data-hub-seem-low/6036 "2025-08-05T13:52:11Z")

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Hello everyone, I recently encountered the global soil erodibility layers produced by NatCap and was really pleased to see these since it saves the effort of having to calculate K-factor oneself. However, when inspecti…

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## [NATCap ready to use InVEST PAWC](https://community.naturalcapitalalliance.org/t/natcap-ready-to-use-invest-pawc/6110)

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**Author:** [@ADIGUN](https://community.naturalcapitalalliance.org/u/ADIGUN)\
**Replies:** 4\
**Last updated:** [August 1, 2025, 11:40pm UTC](https://community.naturalcapitalalliance.org/t/natcap-ready-to-use-invest-pawc/6110 "2025-08-01T23:40:21Z")

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Respected @swolny @megannissel @jdouglass @jesseG, Please is the ready to use PAWC prepared my NATCap has a multiplying factor? I am curious about the unit(mm/mm) or (m/m) or (mm/m). For my study area, the values are fr…

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## [How does the Coastal Vulnerability model use population data?](https://community.naturalcapitalalliance.org/t/how-does-the-coastal-vulnerability-model-use-population-data/6122)

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**Author:** [@n-marine](https://community.naturalcapitalalliance.org/u/n-marine)\
**Replies:** 1\
**Last updated:** [July 29, 2025, 11:09am UTC](https://community.naturalcapitalalliance.org/t/how-does-the-coastal-vulnerability-model-use-population-data/6122 "2025-07-29T11:09:17Z")

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Hi there How does population data contribute to the modelled output? Can it show us the amount of people at risk near a certain coastal strip? or does the model just show population numbers? Thanks N

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