Array · collection · 2025
World Wide Lightning Location Network (WWLLN) Monthly Thunder Hour Data
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/wwlln/data101
The World Wide Lightning Location Network (WWLLN) has monitored global lightning since late 2004.
Description
Since 2013, the number of global WWLLN sensors has remained largely consistent. This WWLLN Monthly Thunder Hour dataset is calculated from lightning detections from 1 January 2013 onward and is an ongoing dataset.
A thunder hour is an hour during which thunder can be heard at a given location. Thunder hours represent a historical measure of lightning occurrence and a metric of thunderstorm frequency that is comparatively less sensitive to geographic variations in the detection capabilities of a lightning location system. Thunder hours are the number of hours in a given month during which at least two WWLLN strokes were observed within 15 km of each grid point.
Read the rest (1 more)
Each file includes the monthly accumulated thunder hours for one year. The data are provided at 0.05° latitude and longitude resolution.
Links
Get the data
- Instructions for citing GHRC data ghrc.nsstc.nasa.gov/home/about-ghrc/citing-ghrc-daac-data ↗
documentation · download · from NASA CMR, data nasa gov
- README: WWLLN MONTHLY THUNDER HOUR DATA ghrc.earthdata.nasa.gov/browseui ↗
documentation · download · from NASA CMR, data nasa gov
- PDF ghrc.earthdata.nasa.gov/browseui ↗
World Wide Lightning Location Network (WWLLN) Monthly Thunder Hour Data User's Guide
documentation · download · from NASA CMR, data nasa gov
- Resource doi.org/10.1175/jtech-d-11-00213.1 ↗
Methods to overcome lightning location system performance limitations on spatial and temporal analysis: Brazilian case
documentation · download · from NASA CMR, data nasa gov
- Resource doi.org/10.1175/bams-d-20-0198.1 ↗
Thunder Hours: How Old Methods Offer New Insights into Thunderstorm Climatology
documentation · download · from NASA CMR, data nasa gov
- World Wide Lightning Location Network (WWLLN) wwlln.net ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3301410475-GHRC_DAAC.iso19115 ↗
download · from data nasa gov
- Resource ghrc.earthdata.nasa.gov/browseui ↗
download · preview image · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3301410475-GHRC_DAAC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Resource ghrc.earthdata.nasa.gov/browseui ↗
Animation of all monthly thunder hour observations
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/world-wide-lightning-location-network-wwlln-monthly-th… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/wwlln/data101 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=fbc8079d-4e03-445d-8f17-9d7781828… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3301410475-GHRC_DAAC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3301410475-GHRC_DAAC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Lightning · Thunder Hour · VLF RECEIVERS · World Wide Lightning Location Network
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Energy · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3301410475-GHRC_DAAC | 14 d ago | JSON v1 |
| NASA Data Portal | fbc8079d-4e03-445d-8f17-9d7781828d0c | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:energy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:vlf-receivers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-electricity/lightning | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-electricity/lightning/thunder-hour | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:wwlln | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |