# Science, Research & Data **URL:** https://community.naturalcapitalalliance.org/c/science-research/7.md [Latest](https://community.naturalcapitalalliance.org/latest.md) · [Categories](https://community.naturalcapitalalliance.org/categories.md) · [Tags](https://community.naturalcapitalalliance.org/tags.md) --- ## [About the Science, Research & Data category](https://community.naturalcapitalalliance.org/t/about-the-science-research-data-category/1008)
**Author:** [@dave](https://community.naturalcapitalalliance.org/u/dave)\ **Replies:** 0\ **Last updated:** [May 15, 2020, 10:25pm UTC](https://community.naturalcapitalalliance.org/t/about-the-science-research-data-category/1008 "2020-05-15T22:25:06Z")
For any topics related to ecosystem services science, modeling, experimental design, validation, sensitivity testing, data interpretation, sharing papers and methods, etc. We hope this category will make the forum more … --- ## [Biophysical table parameters](https://community.naturalcapitalalliance.org/t/biophysical-table-parameters/6526)
**Author:** [@johanndrr96](https://community.naturalcapitalalliance.org/u/johanndrr96)\ **Replies:** 1\ **Last updated:** [October 22, 2026, 3:22pm UTC](https://community.naturalcapitalalliance.org/t/biophysical-table-parameters/6526 "2026-10-22T15:22:11Z")
Hi all, I started using the Nutrient Delivery Ratio model and when I try to access the nutrient parameter database by natcap, it says the link is broken. Is there a new link for that database or where can I find the val… --- ## [Wind watch 3 data for indian ocean, how to get it](https://community.naturalcapitalalliance.org/t/wind-watch-3-data-for-indian-ocean-how-to-get-it/6521)
**Author:** [@aishu.sk2210](https://community.naturalcapitalalliance.org/u/aishu.sk2210)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 7:06pm UTC](https://community.naturalcapitalalliance.org/t/wind-watch-3-data-for-indian-ocean-how-to-get-it/6521 "2026-10-20T19:06:39Z")
How to get wave watch 3 data i am not able to find it , for indian ocean region, actually i had cyclone related wind and wave direction but this wind watch 3 i am nt able to generate , can someone help --- ## [Question about post-processing NDR nutrient retention indicators to focus on natural and semi-natural land covers](https://community.naturalcapitalalliance.org/t/question-about-post-processing-ndr-nutrient-retention-indicators-to-focus-on-natural-and-semi-natural-land-covers/6518)
**Author:** [@Fernbg77](https://community.naturalcapitalalliance.org/u/Fernbg77)\ **Replies:** 0\ **Last updated:** [October 14, 2026, 3:55pm UTC](https://community.naturalcapitalalliance.org/t/question-about-post-processing-ndr-nutrient-retention-indicators-to-focus-on-natural-and-semi-natural-land-covers/6518 "2026-10-14T15:55:59Z")
Hello everyone, I am using the Nutrient Delivery Ratio (NDR) model in InVEST to assess the spatial contribution of nitrogen (N) and phosphorus (P) regulation in the Complejo Cenagoso del Bajo Sinú watershed, in Córdoba,… --- ## [How can i integrate InVEST in my thesis to calibrate the local data?](https://community.naturalcapitalalliance.org/t/how-can-i-integrate-invest-in-my-thesis-to-calibrate-the-local-data/6510)
**Author:** [@rohatariq26](https://community.naturalcapitalalliance.org/u/rohatariq26)\ **Replies:** 3\ **Last updated:** [September 24, 2026, 2:53pm UTC](https://community.naturalcapitalalliance.org/t/how-can-i-integrate-invest-in-my-thesis-to-calibrate-the-local-data/6510 "2026-09-24T14:53:08Z")
Hi, I am Roha. A postgraduate student from NED university of engineering and technology, Karachi. I am doing my masters in Environmental Engineering and working on my thesis regarding carbon sequestration potential of th… --- ## [Data Sources for NbSs in Urban Contexts](https://community.naturalcapitalalliance.org/t/data-sources-for-nbss-in-urban-contexts/6511)
**Author:** [@JoshAyers](https://community.naturalcapitalalliance.org/u/JoshAyers)\ **Replies:** 0\ **Last updated:** [September 18, 2026, 8:38am UTC](https://community.naturalcapitalalliance.org/t/data-sources-for-nbss-in-urban-contexts/6511 "2026-09-18T08:38:43Z")
Hi friends. Good morning from Exeter. I’m doing some research on the efficacy of NbSs, particularly those funded by nature finance mechanisms (e.g. credits, biodiversity net gain schemes, etc.), specifically in urban and… --- ## [UCM resample method](https://community.naturalcapitalalliance.org/t/ucm-resample-method/6500)
**Author:** [@Isabel](https://community.naturalcapitalalliance.org/u/Isabel)\ **Replies:** 2\ **Last updated:** [September 16, 2026, 4:47pm UTC](https://community.naturalcapitalalliance.org/t/ucm-resample-method/6500 "2026-09-16T16:47:57Z")
Hello everyone, A short question: what is the resample type that the Urban Cooling model used to generate the outputs with the Land use resolution? bilinear, cubic, or Nearest Neighbor. Thanks, Isabel --- ## [Global data for African countries](https://community.naturalcapitalalliance.org/t/global-data-for-african-countries/6499)
**Author:** [@slysiame](https://community.naturalcapitalalliance.org/u/slysiame)\ **Replies:** 1\ **Last updated:** [August 31, 2026, 4:41pm UTC](https://community.naturalcapitalalliance.org/t/global-data-for-african-countries/6499 "2026-08-31T16:41:21Z")
Do you have global datasets that can be used as input data for specific African countries like Zambia --- ## [Localizing InVEST - adding site specific data](https://community.naturalcapitalalliance.org/t/localizing-invest-adding-site-specific-data/2421)
**Author:** [@Minton71](https://community.naturalcapitalalliance.org/u/Minton71)\ **Replies:** 3\ **Last updated:** [March 7, 2022, 3:33pm UTC](https://community.naturalcapitalalliance.org/t/localizing-invest-adding-site-specific-data/2421 "2022-03-07T15:33:23Z")
Hi - in order to supplement use of large (coarse) datasets, is there a way of inputting data obtained directly from filed data collection. For instance, I wish to set up an ES analysis for a small forest park c. 25 acre… --- ## [Units of SDR model results](https://community.naturalcapitalalliance.org/t/units-of-sdr-model-results/2034)
**Author:** [@marye\_belete](https://community.naturalcapitalalliance.org/u/marye_belete)\ **Replies:** 9\ **Last updated:** [August 26, 2026, 5:52pm UTC](https://community.naturalcapitalalliance.org/t/units-of-sdr-model-results/2034 "2026-08-26T17:52:53Z")
Dear InVEST users and experts, In the user guide, the unit for SDR results is either tons/pixel or tons/watershed. However, in many papers ton·ha−1·yr−1 has been used. Which one is correct? ton·ha−1·yr−1 or tons/pix… --- ## [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… --- ## [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… --- ## [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. --- ## [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)​ ​. --- ## [How I can set half-saturation constant if the "deg\_sum\_c.tif " is zero?](https://community.naturalcapitalalliance.org/t/how-i-can-set-half-saturation-constant-if-the-deg-sum-c-tif-is-zero/6366)
**Author:** [@Momo1](https://community.naturalcapitalalliance.org/u/Momo1)\ **Replies:** 2\ **Last updated:** [April 3, 2026, 1:54pm UTC](https://community.naturalcapitalalliance.org/t/how-i-can-set-half-saturation-constant-if-the-deg-sum-c-tif-is-zero/6366 "2026-04-03T13:54:09Z")
For the first time, I set half-saturation constant as 0.5. But the result of "deg\_sum\_c.tif " is zero. Is it reasonable? The result of quality\_c is only 6 different values, which is quite different from the former … --- ## [Restoration scenarios](https://community.naturalcapitalalliance.org/t/restoration-scenarios/6368)
**Author:** [@anaacruz](https://community.naturalcapitalalliance.org/u/anaacruz)\ **Replies:** 0\ **Last updated:** [March 31, 2026, 2:14pm UTC](https://community.naturalcapitalalliance.org/t/restoration-scenarios/6368 "2026-03-31T14:14:09Z")
Hi everyone, I’m looking for best practices on how to create restored LULC maps as inputs for the InVEST Habitat Quality and Carbon models. Specifically, I’d like to learn how others have represented future restoration… --- ## [Understanding Urban Cooling - Energy Consumption Input](https://community.naturalcapitalalliance.org/t/understanding-urban-cooling-energy-consumption-input/1006)
**Author:** [@Michael](https://community.naturalcapitalalliance.org/u/Michael)\ **Replies:** 13\ **Last updated:** [November 17, 2025, 6:47pm UTC](https://community.naturalcapitalalliance.org/t/understanding-urban-cooling-energy-consumption-input/1006 "2025-11-17T18:47:17Z")
Hello there! I do have trouble understanding how the urban cooling valuation model concerning the Energy\_Consumption works and what exactly the input should be. The input needed is energy consumption per building type,… --- ## [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/6363)
**Author:** [@diegovargas](https://community.naturalcapitalalliance.org/u/diegovargas)\ **Replies:** 0\ **Last updated:** [March 24, 2026, 4:36pm UTC](https://community.naturalcapitalalliance.org/t/metodological-viability-downscaling-population-projections-from-coarse-administrative-units-to-grid-level-for-urban-nature-access-model/6363 "2026-03-24T16:36:04Z")
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 Carbon Model - Carbon pool data](https://community.naturalcapitalalliance.org/t/invest-carbon-model-carbon-pool-data/1504)
**Author:** [@Ciaran](https://community.naturalcapitalalliance.org/u/Ciaran)\ **Replies:** 26\ **Last updated:** [March 11, 2026, 3:24pm UTC](https://community.naturalcapitalalliance.org/t/invest-carbon-model-carbon-pool-data/1504 "2026-03-11T15:24:30Z")
Hi InVEST Carbon community! I’ve been trying to create LULC carbon models using InVEST Carbon, but I don’t have my own carbon pool data to input into the model. I’ve been trying to search for carbon pool/storage data fo… --- ## [New to InVEST: Analysing fishery resources/biomass?](https://community.naturalcapitalalliance.org/t/new-to-invest-analysing-fishery-resources-biomass/6355)
**Author:** [@vohai2003](https://community.naturalcapitalalliance.org/u/vohai2003)\ **Replies:** 3\ **Last updated:** [March 5, 2026, 4:00pm UTC](https://community.naturalcapitalalliance.org/t/new-to-invest-analysing-fishery-resources-biomass/6355 "2026-03-05T16:00:38Z")
Hi. We are totally new to InVEST. Right now we’re running into a problem: We can’t find the model we want to estimate the fishery resources/biomass. Is there such a model in InVEST? --- ## [Using PET instead of ET0](https://community.naturalcapitalalliance.org/t/using-pet-instead-of-et0/6342)
**Author:** [@Kleber](https://community.naturalcapitalalliance.org/u/Kleber)\ **Replies:** 0\ **Last updated:** [February 2, 2026, 8:33pm UTC](https://community.naturalcapitalalliance.org/t/using-pet-instead-of-et0/6342 "2026-02-02T20:33:25Z")
Hello everyone! I hope you are all well. I intend to compare Seasonal Water Yield results between different decades and am using data available on worldclim between 1960-1990 and 1970-2000. However, I couldn’t find ET0… --- ## [InVEST Habitat Quality](https://community.naturalcapitalalliance.org/t/invest-habitat-quality/6334)
**Author:** [@hkarimi](https://community.naturalcapitalalliance.org/u/hkarimi)\ **Replies:** 3\ **Last updated:** [January 30, 2026, 1:44am UTC](https://community.naturalcapitalalliance.org/t/invest-habitat-quality/6334 "2026-01-30T01:44:27Z")
Hello, I have a couple of questions regarding accessibility and protected areas. I am working at the U.S. scale and have downloaded the Protected Areas layer (PAD-US) for my study area. This layer includes four GAP stat… --- ## [Subject: Validity of using historical climate data (WorldClim 1970-2000) with a 2025 LULC map](https://community.naturalcapitalalliance.org/t/subject-validity-of-using-historical-climate-data-worldclim-1970-2000-with-a-2025-lulc-map/6327)
**Author:** [@Fernbg77](https://community.naturalcapitalalliance.org/u/Fernbg77)\ **Replies:** 2\ **Last updated:** [January 23, 2026, 12:36am UTC](https://community.naturalcapitalalliance.org/t/subject-validity-of-using-historical-climate-data-worldclim-1970-2000-with-a-2025-lulc-map/6327 "2026-01-23T00:36:13Z")
Hello everyone, I would like to raise a question regarding temporal consistency in the application of the InVEST Annual Water Yield (AWY), Sediment Delivery Ratio (SDR), and Nutrient Delivery Ratio (NDR) models. I am c… --- ## [Potential evapotranspiration - model AWY](https://community.naturalcapitalalliance.org/t/potential-evapotranspiration-model-awy/6326)
**Author:** [@Fernbg77](https://community.naturalcapitalalliance.org/u/Fernbg77)\ **Replies:** 1\ **Last updated:** [January 20, 2026, 9:48pm UTC](https://community.naturalcapitalalliance.org/t/potential-evapotranspiration-model-awy/6326 "2026-01-20T21:48:33Z")
For the Water Yield model, I derived reference evapotranspiration using the Thornthwaite method based on monthly minimum and maximum temperature data from WorldClim (CRU-TS). Monthly ETP was calculated and corrected usi… --- ## [Damage loss table confusion](https://community.naturalcapitalalliance.org/t/damage-loss-table-confusion/6322)
**Author:** [@Rahi](https://community.naturalcapitalalliance.org/u/Rahi)\ **Replies:** 4\ **Last updated:** [January 15, 2026, 11:08pm UTC](https://community.naturalcapitalalliance.org/t/damage-loss-table-confusion/6322 "2026-01-15T23:08:25Z")
Can someone interpret the affected building data and service built? I am guessing the affected building is the damage and service built is the avoided damage. But what currency? I am lost here. I have also provided the d… --- ## [Precipitation and evapotranspiration data length for applying the InVEST SWY model in southern Chile](https://community.naturalcapitalalliance.org/t/precipitation-and-evapotranspiration-data-length-for-applying-the-invest-swy-model-in-southern-chile/6318)
**Author:** [@Fernanda](https://community.naturalcapitalalliance.org/u/Fernanda)\ **Replies:** 1\ **Last updated:** [January 12, 2026, 6:04pm UTC](https://community.naturalcapitalalliance.org/t/precipitation-and-evapotranspiration-data-length-for-applying-the-invest-swy-model-in-southern-chile/6318 "2026-01-12T18:04:24Z")
I am currently conducting my master’s thesis, which aims to explore how the integration of spatially explicit ecosystem services modeling and their socio-cultural valuation can support decision-making in local territoria… --- ## [Damage loss table UFRM](https://community.naturalcapitalalliance.org/t/damage-loss-table-ufrm/6315)
**Author:** [@Rahi](https://community.naturalcapitalalliance.org/u/Rahi)\ **Replies:** 1\ **Last updated:** [January 12, 2026, 5:09pm UTC](https://community.naturalcapitalalliance.org/t/damage-loss-table-ufrm/6315 "2026-01-12T17:09:20Z")
What should be the value for building types? Like for slum area, tinshed, residential, hospital --- ## [Using NDR outputs to map nutrient trapping](https://community.naturalcapitalalliance.org/t/using-ndr-outputs-to-map-nutrient-trapping/6239)
**Author:** [@gabi89](https://community.naturalcapitalalliance.org/u/gabi89)\ **Replies:** 6\ **Last updated:** [January 9, 2026, 6:04pm UTC](https://community.naturalcapitalalliance.org/t/using-ndr-outputs-to-map-nutrient-trapping/6239 "2026-01-09T18:04:15Z")
Hi! I’ve been reviewing the InVEST Sediment Retention model, particularly the Sediment Downslope Trapping component (which outputs the “Avoided Export” layer), and I’d like to try a similar type of analysis using a nutri… --- ## [NDR Retention Raster & units of load rasters](https://community.naturalcapitalalliance.org/t/ndr-retention-raster-units-of-load-rasters/6241)
**Author:** [@Taherunnesa](https://community.naturalcapitalalliance.org/u/Taherunnesa)\ **Replies:** 11\ **Last updated:** [January 7, 2026, 6:34pm UTC](https://community.naturalcapitalalliance.org/t/ndr-retention-raster-units-of-load-rasters/6241 "2026-01-07T18:34:43Z")
@swolny How do I calculate nutrient retention in InVEST? The modified load raster is expressed in kg/year, while the export raster is in kg/ha/ year. [Next page](https://community.naturalcapitalalliance.org/c/science-research/7.md?page=1)