@article{fdi:010058176, title = {{L}and {S}urface {T}emperature product validation using {NOAA}'s surface climate observation networks : scaling methodology for the {V}isible {I}nfrared {I}mager {R}adiometer {S}uite ({VIIRS})}, author = {{G}uillevic, {P}. {C}. and {P}rivette, {J}. {L}. and {C}oudert, {B}. and {P}alecki, {M}. {A}. and {D}emarty, {J}{\'e}rome and {O}ttle, {C}. and {A}ugustine, {J}. {A}.}, editor = {}, language = {{ENG}}, abstract = {{NOAA} will soon use the new {V}isible {I}nfrared {I}mager {R}adiometer {S}uite ({VIIRS}) on the {J}oint {P}olar {S}atellite {S}ystem ({JPSS}) as its primary polar-orbiting satellite imager. {E}mploying a near real-time processing system, {NOAA} will generate a series of {E}nvironmental {D}ata {R}ecords ({EDR}s) from {VIIRS} data. {F}or example, the {VIIRS} {L}and {S}urface {T}emperature ({LST}) {EDR} will estimate the surface skin temperature over all global land areas and provide key information for monitoring {E}arth surface energy and water fluxes. {B}ecause both {VIIRS} and its processing algorithms are new, {NOAA} is conducting a rigorous calibration and validation program to understand and improve product quality. {T}his paper presents a new validation methodology to estimate the quantitative uncertainty in the {LST} {EDR}, and contribute to improving the retrieval algorithm. {I}t employs a physically-based approach to scaling up point {LST} measurements currently made operationally at many field and weather stations around the world. {T}he scaling method consists of the merging information collected at different spatial resolutions within a land surface model to fully characterize large area (km x km scale) satellite products. {T}he approach can be used to explore scaling issues over terrestrial surfaces spanning a large range of climate regimes and land cover types, including forests and mixed vegetated areas. {T}he methodology was tested successfully with {NASA}/{MODIS} data, indicating an absolute error for {MODIS} {LST} products of 2.0 {K} at a mixed agricultural site ({B}ondville, {IL}) when accounting for scaling, and higher than 3 {K} without scaling. {T}he {VIIRS} {LST} {EDR} requires a 1.5 {K} measurement accuracy and 2.5 {K} measurement precision. {U}ltimately, this validation approach should lead to an accurate and continuously-assessed {VIIRS} {LST} product suitable to support weather forecast, hydrological applications, or climate studies. {I}t is readily adaptable to other moderate resolution satellite systems.}, keywords = {{L}and {S}urface {T}emperature ; {V}alidation ; {NPP} {VIIRS} ; {MODIS} ; {F}ield experiment ; {S}caling problem}, booktitle = {}, journal = {{R}emote {S}ensing of {E}nvironment}, volume = {124}, numero = {}, pages = {282--298}, ISSN = {0034-4257}, year = {2012}, DOI = {10.1016/j.rse.2012.05.004}, URL = {https://www.documentation.ird.fr/hor/fdi:010058176}, }