![YALE/YCEO/UHI/UHI_all_averaged/v4](https://developers.google.com/earth-engine/datasets/images/YALE/YALE_YCEO_UHI_UHI_all_averaged_v4_sample.png)

Dataset Availability
:   2003-01-01T00:00:00Z--2018-12-31T00:00:00Z

Dataset Producer
:


    [Yale Center for Earth Observation (YCEO)](https://yceo.yale.edu/research/global-surface-uhi-explorer)

Tags
:
    [climate](https://developers.google.com/earth-engine/datasets/tags/climate) [uhi](https://developers.google.com/earth-engine/datasets/tags/uhi) [urban](https://developers.google.com/earth-engine/datasets/tags/urban) [weather-and-climate](https://developers.google.com/earth-engine/datasets/tags/weather-and-climate) [yale](https://developers.google.com/earth-engine/datasets/tags/yale)

#### Description

This dataset contains annual, summertime, and wintertime surface urban
heat island (SUHI) intensities for day and night for over 10,000 urban clusters
throughout the world. The dataset was created using the MODIS 8-day TERRA and
AQUA land surface temperature (LST) products, the Landscan urban extent
database, the Global Multi-resolution Terrain Elevation Data 2010, and the
European Space Agency (ESA) Climate Change Initiative (CCI) land cover data
using the Simplified Urban-Extent Algorithm. The product is available both at
the pixel level (at 300 m resolution after downscaling) and as urban cluster
means from 2003 to 2018. The monthly composites are only available as urban
cluster means.

A summary of older versions,
including changes from the dataset created and analyzed in the originally
published manuscript can be found on the
[Yale Center for Earth Observation website](https://yceo.yale.edu/research/global-surface-uhi-explorer).
The dataset can also be explored using the [Global Surface UHI
Explorer web application](https://yceo.users.earthengine.app/view/uhimap).

The dataset is split into the following six components:

1. **UHI_all_averaged:** Image containing cluster-mean
   composite daytime and nighttime SUHI intensity for annual, summer,
   and winter.

2. **UHI_monthly_averaged:** Image containing cluster-mean
   monthly composites of daytime and nighttime SUHI intensity.

3. **UHI_yearly_averaged:** Image collection of cluster-mean
   yearly composites of daytime and nighttime SUHI intensity from 2003.
   to 2018.

4. **UHI_yearly_pixel:** Image collection of spatially
   disaggregated (nominal scale of 300 m) annual daytime and nighttime
   SUHI intensity from 2003 to 2018.

5. **Summer_UHI_yearly_pixel:** Image collection of spatially
   disaggregated (nominal scale of 300 m) summertime daytime and
   nighttime SUHI intensity from 2003 to 2018.

6. **Winter_UHI_yearly_pixel:** Image collection of spatially
   disaggregated (nominal scale of 300 m) wintertime daytime and
   nighttime SUHI intensity from 2003 to 2018.

This asset is the first component.

### Bands

**Bands**

Pixel size: 300 meters (all bands)

| Name | Units | Pixel Size | Description |
|---|---|---|---|
| `all_daytime_UHI` | °C | 300 meters | All Daytime UHI |
| `all_nighttime_UHI` | °C | 300 meters | All Nighttime UHI |
| `summer_daytime_UHI` | °C | 300 meters | summer Daytime UHI |
| `summer_nighttime_UHI` | °C | 300 meters | Summer Nighttime UHI |
| `winter_daytime_UHI` | °C | 300 meters | Winter Daytime UHI |
| `winter_nighttime_UHI` | °C | 300 meters | Winter Nighttime UHI |

### Terms of Use

**Terms of Use**

[CC-BY-4.0](https://spdx.org/licenses/CC-BY-4.0.html)

### Citations

Citations:

- Chakraborty, T., \& Lee, X. (2019). A simplified urban-extent algorithm
  to characterize surface urban heat islands on a global scale and examine
  vegetation control on their spatiotemporal variability. International
  Journal of Applied Earth Observation and Geoinformation, 74, 269-280.
  [doi:10.1016/j.jag.2018.09.015](https://doi.org/10.1016/j.jag.2018.09.015)

### Explore with Earth Engine

> [!NOTE]
> **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)

### Code Editor (JavaScript)

```javascript
var dataset = ee.Image('YALE/YCEO/UHI/UHI_all_averaged/v4');

var visualization = {
  bands: ['all_daytime_UHI'],
  min: -1.5,
  max: 7.5,
  palette: [
    '313695', '74add1', 'fed976', 'feb24c', 'fd8d3c', 'fc4e2a', 'e31a1c',
    'b10026']
};

Map.setCenter(-74.7, 40.6, 7);

Map.addLayer(dataset, visualization, 'All Daytime UHI');
```
[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/YALE/YALE_YCEO_UHI_UHI_all_averaged_v4) [YCEO Surface Urban Heat Islands: Spatially-Averaged Daytime and Nighttime Intensity for Annual, Summer, and Winter](https://developers.google.com/earth-engine/datasets/catalog/YALE_YCEO_UHI_UHI_all_averaged_v4) This dataset contains annual, summertime, and wintertime surface urban heat island (SUHI) intensities for day and night for over 10,000 urban clusters throughout the world. The dataset was created using the MODIS 8-day TERRA and AQUA land surface temperature (LST) products, the Landscan urban extent database, the Global Multi-resolution Terrain ... YALE/YCEO/UHI/UHI_all_averaged/v4, climate,uhi,urban,weather-and-climate,yale 2003-01-01T00:00:00Z/2018-12-31T00:00:00Z -49.98 -180 69.7 180 Google Earth Engine https://developers.google.com/earth-engine/datasets

- [](https://doi.org/https://yceo.yale.edu/research/global-surface-uhi-explorer)
- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/YALE_YCEO_UHI_UHI_all_averaged_v4)