In kimberly-bastille/sin-cat: Synthetic Indicator Catalogue

Transition Dates {#trans_dates}

Description: The date that cool winter conditions transition to warm stratified summer conditions.

Indicator family:

• [X] Oceanographic

Contributor(s): Kevin Friedland

Affiliations: NEFSC

knitr::opts_chunk$set(echo = F)
library(ecodata)

Introduction to Indicator

Transition dates are defned as the day of the year when surface temperatures changeover from cool to warm conditions in the spring and back to cool conditions in the fall.

Key Results and Visualizations

Ocean summer length in Mid-Atlantic: the annual total number of days between the spring thermal transition date and the fall thermal transition date. The transition dates are defined as the day of the year when surface temperatures changeover from cool to warm conditions in the spring and back to cool conditions in the fall.

MidAtlantic

# Plot indicator
ggplotObject <- ecodata::plot_trans_dates(report= 'MidAtlantic', varName= 'timing')
ggplotObject

# Plot indicator
ggplotObject <- ecodata::plot_trans_dates(report= 'MidAtlantic', varName= 'length')
ggplotObject

NewEngland

# Plot indicator
ggplotObject <- ecodata::plot_trans_dates(report= 'NewEngland', varName= 'timing')
ggplotObject

# Plot indicator
ggplotObject <- ecodata::plot_trans_dates(report= 'NewEngland', varName= 'length')
ggplotObject

Indicator statistics

Spatial scale: by EPU

Temporal scale: Annual time series (1982 to 2023)

Synthesis Theme:

• [X] Multiple System Drivers

# Either from Contributor or ecodata

Implications

Prolonged fall temperatures have been linked to the increased number of cold-stunned Kemp’s ridley sea turtles found in Cape Cod Bay @griffin_warming_2019

Get the data

Point of contact: [e-mail]{.email}

ecodata name: ecodata::trans_dates

Variable definitions

1. falltrans
2. sprtrans
3. maxday

# Pull all var names
vars <- ecodata::trans_dates |>
   dplyr::select(Var) |>
   dplyr::distinct()

DT::datatable(vars)

Indicator Category:

• [X] Database pull

Public Availability

Source data are publicly available.

Accessibility and Constraints

No response

tech-doc link https://noaa-edab.github.io/tech-doc/trans_dates.html

kimberly-bastille/sin-cat documentation built on Oct. 29, 2024, 3:08 a.m.