# Water yield: evapotranspiration map data source

**URL:** <https://community.naturalcapitalalliance.org/t/water-yield-evapotranspiration-map-data-source/2754>\
**Category:** Science, Research & Data\
**Tags:** annual-water-yield\
**Created:** [May 1, 2022, 11:48am UTC](https://community.naturalcapitalalliance.org/t/water-yield-evapotranspiration-map-data-source/2754 "2022-05-01T11:48:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ilham](https://avatars.discourse-cdn.com/v4/letter/i/96bed5/32.png) [@ilham](https://community.naturalcapitalalliance.org/u/ilham)\
**Post date:** [May 1, 2022, 11:48am UTC](https://community.naturalcapitalalliance.org/t/water-yield-evapotranspiration-map-data-source/2754/1 "2022-05-01T11:48:17Z")

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hi, everybody,

I am currently learning to use the annual water yield model and collecting data.  
I would like to ask a question about creating the evapotranspiration map, can I use MODIS(MOD16A2-PET) data as a source of ET0?

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**Author:** ![dave](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/dave/32/70_2.png) [@dave](https://community.naturalcapitalalliance.org/u/dave)\
**Post date:** [May 3, 2022, 1:31pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-evapotranspiration-map-data-source/2754/2 "2022-05-03T13:31:41Z")

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Hi @ilham , I think you’re question might have an answer over here:

> [@The input data of annual water yield - evapotranspiration](https://community.naturalcapitalalliance.org/t/the-input-data-of-annual-water-yield/2042):
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> Hello, Community! Hope everyone is well! I am assessing annual water yield ecosystem services in a certain region. The input data requires the potential evapotranspiration raster data. Is it possible to directly use the annual composited MODIS16 ET data or some other ET products? The PET value is greater than the ET value. Which dataset is better for the assessment of annual water yield? I found that the depth of water yield in the urban area is larger than in other areas. Is it correct? The…

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**Author:** ![ilham](https://avatars.discourse-cdn.com/v4/letter/i/96bed5/32.png) [@ilham](https://community.naturalcapitalalliance.org/u/ilham)\
**Post date:** [May 3, 2022, 6:25pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-evapotranspiration-map-data-source/2754/3 "2022-05-03T18:25:41Z")

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Ok, thank you very much sir for your help.