Calibration and Validation

Calibration and validation (often shortened to cal/val) are processes for ensuring the validity of remotely sensed data. Measurements acquired locally are compared with data from remote sensing satellites. 

You Might Also Be Interested In

Filter By

Content type
SWOT image of the coast of California with blue/green colors indicating flooded areas on February 4, 2024.
News
SWOT Data Products Fully Validated
This is an image showing simulated chlorophyll concentrations in the ocean on March 21, 2022. The image has a black background. Regions colored in blue represent areas of low chlorophyll concentration, green are medium, and red areas have high levels. The image has strips of black running through the colored areas from the upper left to the lower right to show PACE’s orbital track around the globe and places across the ocean where it has not scanned.
Article
Preparing for PACE Data
White words Open Science on a blue background with four colored circles below with data icons inside them.
Blog Post
Open Science Workshop Explores Human-Environment Interactions
Dr. Shailen Desai, NASA’s Measurement System Engineer for the Surface Water and Ocean Topography (SWOT) mission
Data Chat
Dr. Shailen Desai
Dr. Gonzalo González Abad, an Atmospheric Physicist at the Center for Astrophysics, sits at a desk in his office. He is wearing a green collared shirt and behind him is a computer monitor showing code used to manipulate data.
Data User Profile
Dr. Gonzalo González Abad
Placeholder image
Resource - External Link
Gulf of Mexico Loop-Current Signature Observed from GNSS-R Phase Altimetry based on Spire Global CubeSat Data
Placeholder image
Resource - External Link
Level-1 Calibration Assessment of Spire’s LEMUR-2 GNSS-R Ocean Normalized Bistatic Radar Cross Section Estimates
Placeholder image
Resource - External Link
Global GNSS-RO Electron Density in the Lower Ionosphere