SpaceLiDAR

A Julia toolbox for ICESat, ICESat-2 and GEDI data to quickly search, download, and load filtered point data with relevant attributes from the .h5 granules of each data product.
https://github.com/evetion/spacelidar.jl

Category: Sustainable Development
Sub Category: Environmental Satellites

Keywords

earth-observation gedi hacktoberfest icesat icesat-2 io julia laser remote-sensing

Keywords from Contributors

transforms control compose measur symbolic-computation ode optimize parallel units crops

Last synced: about 17 hours ago
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Repository metadata

A Julia package for working with ICESat-2 & GEDI data as part of my PhD research

• Host: GitHub
• URL: https://github.com/evetion/spacelidar.jl
• Owner: evetion
• License: gpl-3.0
• Created: 2020-02-17T11:50:45.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2025-03-04T17:45:36.000Z (about 2 months ago)
• Last Synced: 2025-04-18T22:13:58.206Z (8 days ago)
• Topics: earth-observation, gedi, hacktoberfest, icesat, icesat-2, io, julia, laser, remote-sensing
• Language: Julia
• Homepage: https://www.evetion.nl/SpaceLiDAR.jl/dev/
• Size: 2.9 MB
• Stars: 25
• Watchers: 4
• Forks: 4
• Open Issues: 6
• Releases: 10
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Citation: CITATION.cff

README.md

]add SpaceLiDAR

using SpaceLiDAR
using Extents
# Find all ATL08 granules ever
granules = search(:ICESat2, :ATL08)

# Find only ATL03 granules in a part of Vietnam
vietnam = Extent(X=(102.0, 107.0), Y=(8.0, 12.0))
granules = search(:ICESat2, :ATL08; extent=vietnam, version=6)

# Find GEDI granules in the same way
granules = search(:GEDI, :GEDI02_A; extent=vietnam)

# A granule is pretty simple
granule = granules[1]
granule.id  # filename
granule.url  # download url
granule.info  # derived information from id

# Downloading granules requires a setup .netrc with an NASA EarthData account
# we provide a helper function, that creates/updates a ~/.netrc or ~/_netrc
SpaceLiDAR.netrc!(username, password)  # replace with your credentials

# Afterward you can download the dataset.
# Note: download! updated granule url to local path
granule = SpaceLiDAR.download!(granule)

# You can also load a granule from disk
path2file = granule.url
granule = SpaceLiDAR.granule(path2file)

# Or from a folder
(folder, fn) = splitdir(path2file)
local_granules = SpaceLiDAR.granules(folder)

using DataFrames
fn = "GEDI02_A_2019242104318_O04046_01_T02343_02_003_02_V002.h5"
granule = SpaceLiDAR.granule(fn)

df = DataFrame(granule)
760156×15 DataFrame
    Row │ longitude  latitude   height   height_error  datetime                 intensity   sensitivity  surface  quality  nmodes  track     strong_beam  classification  sun_angle  height_reference 
        │ Float64    Float64    Float32  Float32       DateTime                 Float32     Float32      Bool     Bool     UInt8   String    Bool         String          Float32    Float32          
────────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
      1 │   26.6923  51.823     169.045      0.313182  2019-04-18T10:22:23.996   -857.388      1.38006      true    false       1  BEAM0000        false  ground           49.0315            169.752
      2 │   26.7006  51.823     165.783      0.31319   2019-04-18T10:22:24.078    853.56       0.694586     true    false       1  BEAM0000        false  ground           49.0312            167.354
      3 │   26.7023  51.823     162.871      0.313192  2019-04-18T10:22:24.095    110.071     -0.480232     true    false       1  BEAM0000        false  ground           49.0311            164.785
   ⋮    │     ⋮          ⋮         ⋮          ⋮                   ⋮                 ⋮            ⋮          ⋮        ⋮       ⋮        ⋮           ⋮             ⋮             ⋮             ⋮
 760155 │  110.661   -0.194184  171.157      0.258848  2019-04-18T10:45:33.900   7702.96       0.945006     true     true       2  BEAM1011         true  ground           -1.94442           176.333
 760156 │  110.662   -0.195451  167.176      0.258852  2019-04-18T10:45:33.925   9595.64       0.981322     true     true       2  BEAM1011         true  ground           -1.94564           173.691

using DataFrames
fn = "GEDI02_A_2019108093620_O01965_03_T05338_02_003_01_V002.h5"
granule = SpaceLiDAR.granule(fn)
tlines = DataFrame.(SpaceLiDAR.lines(granule; step=10000))

SpaceLiDAR.GDF.write("lines.gpkg", tlines)

Citation (CITATION.cff)

cff-version: 1.2.0
message: "If you use this software, please cite it using these metadata."
authors:
  - affiliation: "Deltares, TU Delft"
    family-names: Pronk
    given-names: Maarten
    orcid: "https://orcid.org/0000-0001-8758-3939"
  - affiliation: "NASA Jet Propulsion Laboratory"
    family-names: Gardner
    given-names: Alex
    orcid: "https://orcid.org/0000-0002-8394-8889"
date-released: 2021-07-30
title: "SpaceLiDAR.jl"
version: 0.2.2
url: "https://github.com/evetion/SpaceLiDAR.jl"
doi: 10.5281/zenodo.7213658

Owner metadata

• Name: Maarten Pronk
• Login: evetion
• Email:
• Kind: user
• Description: GeoData Scientist working on elevation modelling @Deltares. External PhD candidate at @TUDelft3d
• Website: https://www.evetion.nl
• Location: Netherlands
• Twitter:
• Company: @Deltares @TUDelft3d
• Icon url: https://avatars.githubusercontent.com/u/8655030?u=589d1dc380bbe6c779a177bfbbc8e85a3fdf687a&v=4
• Repositories: 112
• Last ynced at: 2025-04-24T05:43:51.831Z
• Profile URL: https://github.com/evetion

GitHub Events

Total

• Create event: 6
• Commit comment event: 4
• Release event: 1
• Issues event: 1
• Watch event: 2
• Delete event: 1
• Issue comment event: 3
• Push event: 12
• Pull request event: 6

Last Year

• Create event: 6
• Commit comment event: 4
• Release event: 1
• Issues event: 1
• Watch event: 2
• Delete event: 1
• Issue comment event: 3
• Push event: 12
• Pull request event: 6

Committers metadata

Last synced: 6 days ago

Committer domains:

• julialang.org: 1
• ip-172-31-5-81.eu-west-1.compute.internal: 1
• evetion.nl: 1

Issue and Pull Request metadata

Last synced: 1 day ago

Package metadata

• Total packages: 1
• Total downloads: unknown
• Total dependent packages: 0
• Total dependent repositories: 0
• Total versions: 10

Dependencies

Score: -Infinity