# Gridded solar radiation Data Extraction - change temporal resolution & location

**URL:** <https://forum.ecmwf.int/t/gridded-solar-radiation-data-extraction-change-temporal-resolution-location/14062>\
**Category:** CAMS - Datasets and Usage\
**Tags:** cams, cams\_solar\_radiation\
**Created:** [19 August 2025 08:41 UTC](https://forum.ecmwf.int/t/gridded-solar-radiation-data-extraction-change-temporal-resolution-location/14062 "2025-08-19T08:41:58Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Henry\_Watanabe](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/h/b5ac83/32.png) [@Henry\_Watanabe](https://forum.ecmwf.int/u/Henry_Watanabe)\
**Post date:** [19 August 2025 08:41 UTC](https://forum.ecmwf.int/t/gridded-solar-radiation-data-extraction-change-temporal-resolution-location/14062/1 "2025-08-19T08:41:58Z")

</div>

Hi, I’m trying to find any documentation about the API request for the “cams-gridded-solar-radiation”.  
According to the manual in confluence, the temporal resolution for this is from 15 minutes. However, when downloading the data, I can’t find any resource that explains the parameters for changing the temporal resolution, or for selecting a bounding box (because I end up downloading the whole map when I only need a specific part).  
And in the database description it only shows some parameters (check image):

 ![image](https://forum.ecmwf.int/uploads/default/original/2X/4/48f896e82bb2445a1760bd511492c4aedf23c296.png)  
Can I get some resources for this if possible? Thank you very much in advance!

---

<div class="post-metadata">

**Author:** ![Luke\_Jones](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/l/e0b2c6/32.png) [@Luke\_Jones](https://forum.ecmwf.int/u/Luke_Jones)\
**Post date:** [19 August 2025 09:42 UTC](https://forum.ecmwf.int/t/gridded-solar-radiation-data-extraction-change-temporal-resolution-location/14062/2 "2025-08-19T09:42:02Z")

</div>

Hi Henry. I’m afraid the temporal resolution is fixed at 15 minutes. You can’t change it on the web download form or in an API request.

You can however download just a small area with the API by specifying `”area”: [north, west, south, east]` in your request. We haven’t made that clear on the download form because our software has had some issues extracting sub-areas from the files in the past due to their large size. Those issues are largely solved but the request may still fail if your sub-area is large.

Hope this helps,

Luke.