Source: EPSG:4326 — WGS 84
geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)
+proj=longlat +datum=WGS84 +no_defs +type=crsMore about EPSG:4326 →
Convert EPSG:4326 to EPSG:3413
Online coordinate converter from WGS 84 (EPSG:4326) to WGS 84 / NSIDC Sea Ice Polar Stereographic North (EPSG:3413). Enter your source coordinates and get the result instantly. All transformations happen in your browser — no data is sent to any server.
About converting WGS 84 to WGS 84 / NSIDC Sea Ice Polar Stereographic North
Converting from WGS 84 (EPSG:4326) to NSIDC Sea Ice Polar Stereographic North (EPSG:3413) is the standard projection for Arctic sea-ice and polar climate raster data. The polar stereographic projection is true at 70°N with central meridian 45°W; metres on the projected plane represent Earth-surface distances accurately near 70°N and progressively distort towards the equator and the pole.
EPSG:3413 is the legacy NSIDC standard for sea-ice extent and concentration. For newer area-based products NSIDC has adopted EASE-Grid 2.0 (EPSG:6931) which preserves area exactly.
Why people convert EPSG:4326 to EPSG:3413
- Arctic sea-ice extent and concentration analysis
- NASA / ESA Arctic remote-sensing products
- Glaciology and ice-sheet research
- Polar climate raster datasets
Convert EPSG:4326 to EPSG:3413 in code
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4326", "EPSG:3413", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)Target: EPSG:3413 — WGS 84 / NSIDC Sea Ice Polar Stereographic North
projected system measured in linear units (typically metres) · Area of use: World - N hemisphere - north of 60°N
+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crsMore about EPSG:3413 →
Frequently asked questions
- When should I use EPSG:3413 vs EPSG:6931?
- EPSG:3413 is required by legacy NSIDC sea-ice products. EPSG:6931 (EASE-Grid 2.0 North, equal-area) is preferred for new analysis where area accuracy matters.
- How accurate is converting WGS 84 to WGS 84 / NSIDC Sea Ice Polar Stereographic North?
- Projection-only conversions are accurate to floating-point precision. If a datum shift is involved, browser-based tools use Helmert parameters which are accurate to roughly 1-5 m; for surveying-grade work apply the official grid-shift transformation in a desktop GIS.
- Does my data leave the browser when I use this converter?
- No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.