1.1 Authentication (+2)
1.1 Authentication
import ee
# First-time setup (opens browser OAuth flow):
# ee.Authenticate()
# Runtime authentication (service account or existing token):
ee.Initialize(project="your-gcp-project-id")
# Service account (CI / headless):
credentials = ee.ServiceAccountCredentials(
email="sa@project.iam.gserviceaccount.com",
key_file="/path/to/key.json"
)
ee.Initialize(credentials=credentials, project="your-gcp-project-id")
1.2 Define Area of Interest (AOI)
import ee
# From bounding box (lon_min, lat_min, lon_max, lat_max)
aoi = ee.Geometry.Rectangle([-5.0, 54.0, 2.0, 60.0]) # North Sea
# From polygon coordinates [[lon, lat], ...]
aoi = ee.Geometry.Polygon([[
[-2.0, 56.5], [1.5, 56.5], [1.5, 58.0], [-2.0, 58.0]
]])
# From GeoJSON FeatureCollection
aoi = ee.FeatureCollection(
"projects/my-project/assets/pipeline_corridor"
)
1.3 Key Marine / Offshore Datasets
| Dataset |
EE ID |
Description |
| GEBCO 2023 bathymetry |
projects/sat-io/open-datasets/gebco/GEBCO_2023 |
Global 15-arc-sec depth |
| ETOPO1 |
NOAA/NGDC/ETOPO1 |
Global 1-arc-min elevation |
| Sentinel-2 SR |
COPERNICUS/S2_SR_HARMONIZED |
10 m optical, 5-day revisit |
| Landsat 8/9 |
LANDSAT/LC09/C02/T1_L2 |
30 m optical |
| ERA5 wind/wave |
ECMWF/ERA5_LAND/HOURLY |
Reanalysis hourly |
| NOAA GOES SST |
NOAA/CDR/OISST/V2_1 |
Daily sea surface temp |
| ESA WorldCover |
ESA/WorldCover/v200 |
10 m land cover |
vamseeachanta