Cloud Mask
type: Dataset
description: Date of Image: Pre-Event: June 2024 Post-Event: 8/15/2024, 8/16/2024, 8/17/2024, 8/18/2024, 8/19/2024, 8/20/2024, 8/21/2024 Summary: These Black Marble Day-Night Band (BRDF-Corrected) images were created by the NASA Black Marble Science team. The images corrected for atmospheric, terrain, lunar BRDF, and straylight effects, and directly measures light intensity on the ground in units of nanowatts/(steradian centimeter squared). The images are scaled from 0 - 30, and show the impact of Tropical Storm Ernesto on electric grids in Puerto Rico. The baseline image is from June 2024, a cloud-free, moon-free composite, and the “after" images are from August 15, 2024 - August 21, 2024. There is a layer to display where clouds are present. This comparison between the images is meant as a visual assessment of outage impacts from Tropical Storm to aid various partners who are working to deliver emergency aids to local communities. Power outage maps like these help disaster response efforts in the short-term as well as long-term monitoring during the crucial stages of disaster recovery. Suggested Use: NASA's Black Marble Nighttime Light product suite is a state-of-the-art daily global collection of standard products for monitoring nighttime lights (NTL). Utilizing the Visible Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) aboard the Suomi-NPP, NOAA-20, and NOAA-21 satellites. The image is in inferno color scale. Yellow represents presence of more light; dark blue less lights. Grey represents cloud cover. Satellite/Sensor: Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) onboard the Suomi National Polar-orbiting Platform (SNPP), NOAA-20, and NOAA-21 Resolution: 500 meters Credits: NASA Black Marble Science team Please cite the following two references when using this data: Román MO, Stokes EC, Shrestha R, Wang Z, Schultz L, Carlo EA, Sun Q, Bell J, Molthan A, Kalb V, Ji C. Satellite-based assessment of electricity restoration efforts in Puerto Rico a…
issued: 2024-08-23T19:03:43+00:00
modified: 2024-08-23T19:03:44+00:00
publisher: NASA ArcGIS Online
keyword: Black Marble
keyword: Black Marble Day-Night Band
keyword: NASA
keyword: NASA Disasters
keyword: Puerto Rico
keyword: Tropical Storm
keyword: Tropical Storm Ernesto
landing page: https://disasters.amerigeoss.org/maps/NASA::cloud-mask-10

CSV
type: Distribution
format: CSV
issued: 2025-09-18T18:08:23.693370
modified: 2025-09-18T18:08:23.683865
access URL: https://disasters.amerigeoss.org/api/download/v1/items/85ba3885250d406bb23afaffbdd194f1/csv

ArcGIS Hub Dataset
type: Distribution
format: HTML
issued: 2025-09-18T18:08:23.693363
modified: 2025-09-18T18:08:23.683576
access URL: https://disasters.amerigeoss.org/maps/NASA::cloud-mask-10

ArcGIS GeoService
type: Distribution
format: ArcGIS GeoServices REST API
issued: 2025-09-18T18:08:23.693367
modified: 2025-09-18T18:08:23.683698
access URL: https://maps.disasters.nasa.gov/ags04/rest/services/tropicalstorm_ernesto_2024/BM_DNB_tropicalstorm_ernesto_2024/MapServer/10

KML
type: Distribution
format: KML
issued: 2025-09-18T18:08:23.693373
modified: 2025-09-18T18:08:23.684099
access URL: https://disasters.amerigeoss.org/api/download/v1/items/85ba3885250d406bb23afaffbdd194f1/kml

Shapefile
type: Distribution
format: ZIP
issued: 2025-09-18T18:08:23.693371
modified: 2025-09-18T18:08:23.683944
access URL: https://disasters.amerigeoss.org/api/download/v1/items/85ba3885250d406bb23afaffbdd194f1/shapefile

GeoJSON
type: Distribution
format: GeoJSON
issued: 2025-09-18T18:08:23.693372
modified: 2025-09-18T18:08:23.684023
access URL: https://disasters.amerigeoss.org/api/download/v1/items/85ba3885250d406bb23afaffbdd194f1/geojson

OGC WMS
type: Distribution
format: OGC WMS
issued: 2025-09-18T18:08:23.693369
modified: 2025-09-18T18:08:23.683783
access URL: https://maps.disasters.nasa.gov/ags04/services/tropicalstorm_ernesto_2024/BM_DNB_tropicalstorm_ernesto_2024/MapServer/WMSServer