@article{fdi:010095355, title = {{R}eef{TEMPS} : the {P}acific {I}slands coastal temperature network}, author = {{L}e {G}endre, {R}. and {V}arillon, {D}avid and {F}iat, {S}ylvie and {H}ocd{\'e}, {R}{\'e}gis and {N}'{Y}eurt, {A}. {D}. and {A}ndr{\'e}fou{\¨e}t, {S}erge and {A}ucan, {J}er{\^o}me and {C}ravatte, {S}ophie and {D}uphil, {M}axime and {G}anachaud, {A}lexandre and {G}audron, {B}. and {K}estenare, {E}lodie and {L}iao, {V}. {T}. and {P}elletier, {B}ernard and {P}eltier, {A}. and {S}chaefer, {A}. {L}. and {T}rophime, {T}. and {V}an {W}ynsberge, {S}. and {D}andonneau, {Y}. and {A}llenbach, {M}. and {M}enk{\`e}s, {C}hristophe}, editor = {}, language = {{ENG}}, abstract = {{W}hile the rise in global ocean temperature continues its course, reaching 1.45 +/- 0.12 degrees {C} above pre-industrial level according to the {W}orld {M}eteorological {O}rganization in 2023, marine heatwave frequencies and intensities increase. {C}onsequently, coral reef ecosystems, which are among the most vulnerable environments, are strongly impacted by dystrophic events and corals experiencing increasing frequencies of bleaching events. {T}hat has devastating consequences for the {P}acific {I}sland countries and territories ({PICT}s) that strongly rely on these ecosystems. {I}n situ observation remains the best alternative for providing accurate characterization of long-term trends and extremes in these shallow environments. {T}his paper presents the coastal temperature dataset of the {R}eef{TEMPS} monitoring network ({V}arillon et al., 2025, 10.17882/55128; {L}iao et al., 2025, 10.17882/82291) in which moored stations are implemented over a number of {PICT}s over a wide region in the western and central {S}outh {P}acific from {N}ew {C}aledonia to {F}rench {P}olynesia. {T}hese in situ temperature time series are unique in several ways: in the length of some historical stations dating back to 1958 for the oldest, thus providing more than 65 years of daily data; in the number of countries sampled (16 {PICT}s); and in the variety of coral ecosystems monitored (from atolls to high islands and from barrier reefs' external slopes to shallow and narrow lagoons). {M}easurement devices have evolved over the years to provide increasingly precise and frequent observations, so the {R}eef{TEMPS} network was endorsed as a {F}rench {N}ational {O}bservation {S}ervice in 2020, a label ensuring quality-controlled and open-access data of long-term observations. {A}ll stations are publicly available in {ASCII} or formatted {N}et{CDF} files either in the {R}eef{TEMPS} dedicated information system, which also allows for a quick visualization of time series, or on the {SEANOE} marine data platform. {A}ll links and accesses to these temperature time series are provided herein. {T}he longevity of these temperature time series allows for diagnosing long-term trends, highlighting the influence of multiple processes on temperature dynamics (e.g. internal waves, cyclones, seasonal, and climate modes) and documenting the time evolution of extreme events. {A}ll files are made publicly available on dedicated {SEANOE} repositories.}, keywords = {{PACIFIQUE} {ILES} ; {PACIFIQUE} {SUD}}, booktitle = {}, journal = {{E}arth {S}ystem {S}cience {D}ata}, volume = {17}, numero = {10}, pages = {5277--5301}, ISSN = {1866-3508}, year = {2025}, DOI = {10.5194/essd-17-5277-2025}, URL = {https://www.documentation.ird.fr/hor/fdi:010095355}, }