@article{fdi:010090120, title = {{R}eliability of gridded temperature datasets to monitor surface air temperature variability over {B}olivia}, author = {{S}atg{\'e}, {F}r{\'e}d{\'e}ric and {P}illco, {R}. and {M}olina-{C}arpio, {J}. and {M}ollinedo, {P}. {P}. and {B}onnet, {M}. {P}.}, editor = {}, language = {{ENG}}, abstract = {{S}ix gridded temperature datasets ({T}-datasets) were evaluated for the first time over the {S}outh {A}merican continent, through the case study of {B}olivia, by comparing them with temperature records acquired from 82 meteorological stations spanning the 1995-2010 period. {T}he comparisons were carried out at the daily time step considering different seasons (annual scale, austral summer and austral winter) and regions ({A}mazon, {L}a {P}lata and {A}ltiplano basins). {O}verall, the climate hazards group infrared temperature with stations ({CHIRTS}) and the climate prediction centre ({CPC}) {T}-datasets provided the most reliable mean daily temperature ({T}-mean) and also described well the temporal variability of minimum and maximum daily temperature estimates ({T}-n and {T}-x). {T}-mean, {T}-n and {T}-x trends were analysed over the 1983-2016 period to observe temperature temporal evolution across the three regions. {D}espite some general agreements between the trends ({T}-mean, {T}-x and {T}-n), large discrepancies are also observed. {I}t was found that {CPC} overestimates and {CHIRTS} underestimates mean temperature trends and that {CPC} ({CHIRTS}) was better than {CHIRTS} ({CPC}) to estimate {T}-x ({T}-n) trends, both in magnitude and space. {F}urthermore, opposing trends (i.e., warming and cooling) are described by {CPC} and {CHIRTS} for some specific regions, which call into question their reliability for such analyses. {T}hese findings highlight the need to validate gridded temperature products with reliable ground data for the regions under study, particularly if they have a wide elevation range.}, keywords = {{B}olivia ; gridded temperature datasets ; reliability ; temperature trends ; {BOLIVIE}}, booktitle = {}, journal = {{I}nternational {J}ournal of {C}limatology}, volume = {[{E}arly access]}, numero = {}, pages = {[16 p.]}, ISSN = {0899-8418}, year = {2023}, DOI = {10.1002/joc.8200}, URL = {https://www.documentation.ird.fr/hor/fdi:010090120}, }