In pbs-assess/PACea: An R package of Pacific ecosystem information to help facilitate an ecosystem approach to fisheries management

OISST

NOAA's Optimal Interpolation Sea Surface Temperature

OISST - long term gridded climate data record

• 1/4° longitude x latitude

• Interpolated to fill gaps

• Canada's Pacific EEZ

• r colorize("925 gridded cells", "red")

• r colorize("September, 1981 to (relatively) present", "red")

• Updated ~monthly

\ 2 data products: weekly and monthly mean SST

• oisst_7day and oisst_month

\ \footnotesize R erddap - https://www.ncei.noaa.gov/products/optimum-interpolation-sst

Huang, B., C. Liu, V. Banzon, E. Freeman, G. Graham, B. Hankins, T. Smith, and H. Zhang, 2021: Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) Version 2.1. J. Climate, 34, 2923–2939, https://doi.org/10.1175/JCLI-D-20-0166.1. \normalsize

OISST -- monthly mean

The data are saved as a sf (simple feature) tibble object in pacea:

oisst_month

Simple feature collection with 467125 features and 7 fields
Geometry type: POINT
Dimension:     XY
Bounding box:  xmin: -138.625 ymin: 46.625 xmax: -123.125 ymax: 54.625
Geodetic CRS:  WGS 84
# A tibble: 467,125 x 8
   year month   sst sst_sd sst_n start_date end_date
* <dbl> <dbl> <dbl>  <dbl> <int> <date>     <date>
1  1981     9  16.4  0.830    30 1981-09-01 1981-09-30
2  1981    10  14.3  0.838    31 1981-10-01 1981-10-31
3  1981    11  12.7  1.38     30 1981-11-01 1981-11-30
4  1981    12  10.2  0.549    31 1981-12-01 1981-12-31
5  1981     9  16.4  1.05     30 1981-09-01 1981-09-30
6  1981    10  14.2  0.697    31 1981-10-01 1981-10-31
# i 467,119 more rows
# i 1 more variable: geometry <POINT [B0]>
# i Use `print(n = ...)` to see more rows

```{asis, echo = more_details}

Help file

```r
?oisst_month

Description
  Simple features objects of NOAAs Optimal Interpolation SST

oisst_7day
  7-day mean sea surface temperature (deg C)

oisst_month
  Monthly mean sea surface temperature in (deg C)

Usage
  oisst_7day
  oisst_month

Format
  year    Year

  week    Calendar week

  month   Calendar month

  sst     Mean sea surface temperature, SST (deg C)
...

Built in plots -- default

plot(oisst_month)

Built in plots -- select years and months

plot(oisst_month, months.plot = c("April", "June"), years.plot = c(2021:2022))

pbs-assess/PACea documentation built on April 17, 2025, 11:36 p.m.