Normalized Difference Urban Index (NDUI)

Stream data with DDA:

from dagshub.streaming import DagsHubFilesystem

fs = DagsHubFilesystem(".", repo_url="https://dagshub.com/DagsHub-Datasets/ndui-dataset")

fs.listdir("s3://qinglinglab-ndui-2000")

Description:

NDUI is combined with cloud shadow-free Landsat Normalized Difference Vegetation Index (NDVI) composite and DMSP/OLS Night Time Light (NTL) to characterize global urban areas at a 30 m resolution,and it can greatly enhance urban areas, which can then be easily distinguished from bare lands including fallows and deserts. With the capability to delineate urban boundaries and, at the same time, to present sufficient spatial details within urban areas, the NDUI has the potential for urbanization studies at regional and global scales.

Contact:

NDUI is combined with cloud shadow-free Landsat Normalized Difference Vegetation Index (NDVI) composite and DMSP/OLS Night Time Light (NTL) to characterize global urban areas at a 30 m resolution,and it can greatly enhance urban areas, which can then be easily distinguished from bare lands including fallows and deserts. With the capability to delineate urban boundaries and, at the same time, to present sufficient spatial details within urban areas, the NDUI has the potential for urbanization studies at regional and global scales.

Update Frequency:

Next year's NDUI is added as soon as it is available.

Managed By:

Remote Sensing Big Data Intelligent Application Laboratory, School of Aeronautics and Astronautics, Sun Yat-sen University

Collabs:

• ASDI:
  • Tags: satellite imagery

Resources:

1. resource:
   • Description: NDUI-2000 on a global land scale
   • ARN: arn:aws:s3:::qinglinglab-ndui-2000
   • Region: us-west-2
   • Type: S3 Bucket

Tags:

aws-pds, earth observation, geospatial, urban, satellite imagery, sustainability

Tutorials:

1. tutorial:

   • Title: An example of using ndui data with AWS sagemaker tools
   • URL: https://github.com/yifwahaha/aws-ndui
   • Services: EC2 - AuthorName: Yifang Wang
   • AuthorURL: https://github.com/yifwahaha

2. tutorial:

   • Title: Automated extraction of urban built-up areas with NDUI using Python and Google Earth Engine
   • URL: https://github.com/yifwahaha/NDUI_work_flow
   • Services: EC2 - AuthorName: Yifang Wang
   • AuthorURL: https://github.com/yifwahaha

Tools & Applications:

1. tools & applications:
   • Title: Global DMSP images Correction
   • URL: https://code.earthengine.google.com/e0488afe77caa345c3217b0ff339ccca
   • AuthorName: Yifang Wang
   • AuthorURL: https://github.com/yifwahaha

Publication:

1. publication:

   • Title: Building a Better Urban Picture:Combining Day and Night Remote Sensing Imagery
   • URL: https://www.mdpi.com/2072-4292/7/9/11887
   • AuthorName: Qingling Zhang and Bin Li and David Thau & Rebecca Moore

2. publication:

   • Title: A Robust Method to Generate a Consistent Time Series From DMSP/OLS Nighttime Light Data
   • URL: https://doi.org/10.1109/TGRS.2016.2572724
   • AuthorName: Qingling Zhang and Bhartendu Pandey and Keren C.Seto