Datasets:

Modalities:
Image
Languages:
English
DOI:
Libraries:
Datasets
License:
CEPhillips commited on
Commit
a8b42ec
1 Parent(s): e48662b

Create README.md

Browse files
Files changed (1) hide show
  1. README.md +51 -0
README.md ADDED
@@ -0,0 +1,51 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ ---
2
+ size_categories:
3
+ - n<1K
4
+ ---
5
+
6
+ # Dataset Card for HLS Irrigation Scenes
7
+
8
+ ## Dataset Description
9
+
10
+ - **Homepage: https://huggingface.co/datasets/nasa-impact/hls_irrigation_scenes**
11
+ - **Point of Contact: Dr. Christopher Phillips ([email protected])**
12
+
13
+ ### Dataset Summary
14
+
15
+ This dataset contains Harmonized Landsat-Sentinel imagery of burn scars and the associated masks for the years 2018-2021 over the contiguous United States. There are 512x512 scenes. It's primary purpose is for training geospatial machine learning models.
16
+
17
+ ## Dataset Structure
18
+
19
+
20
+ ## TIFF Metadata
21
+ Each tiff file contains a 512x512 pixel tiff file. Scenes have 6 bands, and masks have 1 band. For satellite scenes, each band has already been converted to reflectance.
22
+
23
+ ## Band Order
24
+ For scenes:
25
+ Channel, Name, HLS S30 Band number
26
+ 1, Blue, B02
27
+ 2, Green, B03
28
+ 3, Red, B04
29
+ 4, NIR, B8A
30
+ 5, SW 1, B11
31
+ 6, SW 2, B12
32
+
33
+ Masks are a single band with values:
34
+ 1 = Burn scar
35
+ 0 = Not-burned
36
+ -1 = Missing data
37
+
38
+ ## Class Distribution
39
+ Burn Scar - 11%
40
+ Not-burned - 88%
41
+ No Data - 1%
42
+
43
+ ## Data Splits
44
+ The 805 files have been randomly split into training (2/3) and validation (1/3) directories, each containing the masks, scenes, and index files.
45
+
46
+ ## Dataset Creation
47
+ The data were from shapefiles maintained by the Monitoring Trends in Burn Severity (MTBS) group. The original data may be found at:
48
+ https://mtbs.gov/
49
+
50
+ After co-locating the shapefile and HLS scene, the 512x512 chip was formed by taking a window with the burn scar in the center. Burn scars near the edges of HLS tiles are offset from center.
51
+ Images were manually filtered for cloud cover and missing data to provide as clean a scene as possible, and burn scar presence was also manually verified.