Caribbean Region

Values correspond to Index scores

Description of time series:

Positive NAO values mean significantly warmer winters over the upper Midwest and New England and negative NAO values can mean cold winter outbreaks and heavy snowstorms. During the last five years, the NAO has been variable with neither phase dominant.

Description of gauge:

The unitless two-way gauge depicts whether the average of the last 5 years of data for the climate indicator is above or below the median value of the entire time series. High values in either direction mean extreme variation from the median value of the entire time series. 

Description of North Atlantic Oscillation (NAO):

The North Atlantic Oscillation (NAO) Index measures the relative strengths and positions of a permanent low-pressure system over Iceland (the Icelandic Low) and a permanent high-pressure system over the Azores (the Azores High). When the index is positive (NAO+) significantly warmer winters can occur over the upper Midwest and New England. On the East Coast of the United States a NAO+ can also cause increased rainfall, and thus warmer, less saline surface water. This prevents nutrient-rich upwelling, which reduces productivity. When the NAO index is negative, the upper central and northeastern portions of the United States can incur winter cold outbreaks and heavy snowstorms. This climate condition impacts people and ecosystems across the globe and each of the indicators presented here. Interactions between the ocean and atmosphere alter weather around the world and can result in severe storms or mild weather, drought, or flooding. Beyond “just” influencing the weather and ocean conditions, these changes can produce secondary results that influence food supplies and prices, forest fires and flooding, and create additional economic and political consequences.

Data:

Climate indicator data was accessed from the NOAA NCEP (https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/norm.nao.monthly.b5001.current.ascii.table). The data plotted are unitless anomalies and averaged across a given region

Values correspond to Index scores

Description of time series:

Positive AMO values indicate the warm phase, during which surface waters in the North Atlantic Ocean are warmer than average, and negative AMO values indicate the cold phase, during which surface waters in the North Atlantic Ocean are cooler than average. During the last five years, the AMO has largely been in a positive phase, with little trend.

Description of gauge:

The unitless two-way gauge depicts whether the average of the last 5 years of data for the climate indicator is above or below the median value of the entire time series. High or low gauge values mean recent values are unusually high or low relative to the entire data record.

Description of Atlantic Multidecadal Oscillation (AMO):

The Atlantic Multidecadal Oscillation is a series of long-duration changes in the North Atlantic sea surface temperature, with cool and warm phases that may last for 20-40 years. Most of the Atlantic between the equator and Greenland changes in unison. Some areas of the North Pacific also seem to be affected. This broadscale climate condition affects air temperatures and rainfall over much of the Northern Hemisphere. It is also related to major droughts in the Midwest and the Southwest of the U.S. In the warm phase, these droughts tend to be more frequent and/or severe. Vice-versa for the cold phase. During the warm phases the number of tropical storms that mature into severe hurricanes is much greater than during cool phases. Despite the association of AMO with multiple weather and climate impacts, recent scientific debate has questioned whether this indicator is a natural climate variation, like the other climate indicators presented here, or a response of the climate system to human-caused climate change. Whether natural or a result of human-caused climate change, AMO is a useful feature for tracking large-scale weather and climate events. This climate condition impacts people and ecosystems across the globe and each of the indicators presented here. Interactions between the ocean and atmosphere alter weather around the world and can result in severe storms or mild weather, drought, or flooding. Beyond “just” influencing the weather and ocean conditions, these changes can produce secondary results that influence food supplies and prices, forest fires and flooding, and create additional economic and political consequences.

Data Background:

Climate indicator data was accessed from NOAA’s Earth Systems Research Laboratory (https://www.esrl.noaa.gov/psd/data/timeseries/AMO/). The data plotted are unitless anomalies and averaged across a given region

Sea surface temperature is defined as the average temperature of the top few millimeters of the ocean. Sea surface temperature monitoring tells us how the ocean and atmosphere interact, as well as providing fundamental data on the global climate system

Data Interpretation:

Time series: The time series shows the integrated sea surface temperature for the Caribbean region. During the last five years there has been no notable trend and values were between the 10th and 90th percentiles of all observed data in the time series.

Gauge: The gauge value of 84 indicates that the mean sea surface temperature between 2016 and 2021 for the Caribbean region was higher than 84% of the temperatures between 1985 and 2021.

Indicator and source information:

The SST product used for this analysis is the NOAA Coral Reef Watch CoralTemp v3.1 SST composited monthly (https://coralreefwatch.noaa.gov/product/5km/index_5km_sst.php) accessed from CoastWatch (https://oceanwatch.pifsc.noaa.gov/erddap/griddap/CRW_sst_v3_1_monthly.g…). 

Great Lakes SST data were accessed from (https://coastwatch.glerl.noaa.gov/glsea/glsea.html). 

The data are plotted in degrees Celsius. 

Data background and limitations:

The NOAA Coral Reef Watch (CRW) daily global 5km Sea Surface Temperature (SST) product, also known as CoralTemp, shows the nighttime ocean temperature measured at the surface. The CoralTemp SST data product was developed from two, related reanalysis (reprocessed) SST products and a near real-time SST product. Monthly composites were used for this analysis.

Sea level varies due to the force of gravity, the Earth’s rotation and irregular features on the ocean floor. Other forces affecting sea levels include temperature, wind, ocean currents, tides, and other similar processes.

Description of time series:

The time series shows the relative sea level, water height as compared to nearby land level, for the Caribbean region. During the last five years there has been no notable trend and values have remained within the 10th and 90th percentiles of all observed data in the time series.

Description of gauge:

The gauge value of 85 indicates that the sea level between 2016 and 2021 for the Caribbean region was higher than 85% of the sea level between 1980 and 2021.

Indicator and source information:

NOAA monitors sea levels using tide stations and satellite laser altimeters. Tide stations around the globe tell us what is happening at local levels, while satellite measurements provide us with the average height of the entire ocean. Taken together, data from these sources are fed into models that tell us how our ocean sea levels are changing over time. For this site, data from tide stations around the US were combined to create regionally averaged records of sea-level change since 1980. We present data for all regions.

Data background and limitations:

Sea level data presented here are measurements of relative sea level, water height as compared to nearby land level, from NOAA tide gauges that have >20 years of hourly data served through NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) Tides and Currents website. These local measurements are regionally averaged by taking the median value of all the qualifying stations within a region. The measurements are in meters and are relative to the year 2000. 

Values indicate cumulative annual heatwave intensity and duration in a region in degree-days

Description of Time Series: This time series shows the average integrated degree day value for the Caribbean region. During the last five years there has been no trend and values have remained between the 10th and 90th percentiles of all observed data in the time series.

Description of Gauge: The gauge value of 82 indicates that between 2016 and 2021 the average integrated degree day value was much higher than the median average integrated degree day value between 1982 and 2021.

Gauge Values

• 0 - 10: The five-year integrated degree day value is very low compared to the median value.
• 10 - 25: The five-year integrated degree day value is much lower than the median value.
• 25 - 50: The five-year integrated degree day value is lower than the median value.
• 50: The five-year integrated degree day value average equals the median value.
• 50 - 75: The five-year integrated degree day value is higher than the median value.
• 75 - 90: The five-year integrated degree day value is much higher than the median value.
• 90 - 100: The five-year integrated degree day value is very high compared to the median value.

Indicator Source Information:

The marine heatwave data shown here are calculated by NOAA’s National Centers for Environmental Information using Optimum Interpolation Sea Surface Temperature (OISST) data. The NOAA 1/4° OISST is a long term Climate Data Record that incorporates observations from different platforms (satellites, ships, buoys and Argo floats) into a regular global grid. The dataset is interpolated to fill gaps on the grid and create a spatially complete map of sea surface temperature. Satellite and ship observations are referenced to buoys to compensate for platform differences and sensor biases.

Data Background and Caveats:

Heatwave metrics are calculated using OISST, a product that uses some forms of interpolation to fill data gaps. Heatwaves are defined by Hobday et al., 2016 as distinct events where SST anomaly reaches the 90th percentile in a pixel for at least 5 days, separated out by 3 or more days.

Values indicate monthly percent of an LME area affected by heatwave

Description of Time Series: This time series shows the monthly heatwave spatial coverage for the Caribbean Region. During the last five years there has been no significant trend and the five-year mean is within the 10th and 90th percentiles of all observed data in the time series.

Description of Gauge: The gauge value of 89 indicates that between 2016 and 2021 the average area fraction value was much higher than the median area fraction between 1982 and 2021.

Gauge Values

• 0 - 10: The five-year area fraction value is very low compared to the median value.
• 10 - 25: The five-year area fraction value is much lower than the median value.
• 25 - 50: The five-year area fraction value is lower than the median value.
• 50: The five-year area fraction value average equals the median value.
• 50 - 75: The five-year area fraction value is higher than the median value.
• 75 - 90: The five-year area fraction value is much higher than the median value.
• 90 - 100: The five-year area fraction value is very high compared to the median value.

Indicator Source Information:

The marine heatwave data shown here are calculated by NOAA’s National Centers for Environmental Information using Optimum Interpolation Sea Surface Temperature (OISST) data. The NOAA 1/4° OISST is a long term Climate Data Record that incorporates observations from different platforms (satellites, ships, buoys and Argo floats) into a regular global grid. The dataset is interpolated to fill gaps on the grid and create a spatially complete map of sea surface temperature. Satellite and ship observations are referenced to buoys to compensate for platform differences and sensor biases.

Data Background and Caveats:

Heatwave metrics are calculated using OISST, a product that uses some forms of interpolation to fill data gaps. Heatwaves are defined by Hobday et al., 2016 as distinct events where SST anomaly reaches the 90th percentile in a pixel for at least 5 days, separated out by 3 or more days

Chlorophyll a, a pigment produced by phytoplankton, can be measured to determine the amount of phytoplankton present in water bodies. From a human perspective, high values of chlorophyll a can be good (abundance of nutritious diatoms as food for fish) or bad (Harmful Algal Blooms that may cause respiratory distress for people), based on the associated phytoplankton species.

Data Interpretation:

Time series: This time series shows the average concentration levels of chlorophyll a for the  Caribbean region. During the last five years there has been a significant upward trend and values have remained within the 10th and 90th percentiles of all observed data in the time series.

Gauge: The gauge value of 79 indicates that between 2016 and 2021 the average concentration levels of chlorophyll a in the Caribbean region were significantly higher than the long term median of all chlorophyll a concentration levels between 1998 and 2021.

Gauge values

0–10: Chlorophyll a was significantly lower than the long term median state.

10–25: Chlorophyll a was considerably lower than the long term median state.

25–50: Chlorophyll a was slightly lower than the long term median state.

50: Chlorophyll a was at the long term median state.

50–75: Chlorophyll a was slightly higher than the long term median state.

75–90: Chlorophyll a was considerably higher than the long term median state.

90–100: Chlorophyll a was significantly higher than the long term median state.

Indicator and source information:

Chlorophyll a concentration values for this indicator were obtained using the ESA OC-CCI product, a merged product from the European Spatial Agency (ESA) that is a validated, error-characterized, Essential Climate Variable (ECV) and climate data record (CDR) from satellite observations specifically developed for climate studies. The dataset (v5.0) is created by band shifting and bias-correcting SeaWiFS, MODIS, VIIRS and OLCI data to match MERIS data, merging the datasets and computing per-pixel uncertainty estimates. Source: https://climate.esa.int/en/projects/ocean-colour/news-and-events/news/ocean-colour-version-50-data-release/

https://docs.pml.space/share/s/okB2fOuPT7Cj2r4C5sppDg

Annual means for each LME for each year were calculated from the average of the LME 12 monthly means in that year on a pixel by pixel basis. Then for each year, the median average was taken spatially to yield one value per year per LME.  The overall “National Annual Mean” mean was calculated as the average of all LME annual means. See the Data Background section for more details.  

Data background and limitations:

Satellite chlorophyll a data was extracted for each LME from the ESA OC-CCI v5.0 product. These 4 km mapped, monthly composited data were - averaged over each year to produce pixel by pixel annual composites, then the spatial median was calculated  for each LME, resulting in one value per year per LME.   This technique was used for each LME from North America and Hawaii. Phytoplankton concentrations are highly variable (spatially and temporally), largely driven by changing oceanographic conditions and seasonal variability.   

Data Interpretation:

The scores you see for each region are composite scores for the themes and then one overall score. The overall score is an average of all four theme scores for the Puerto Rico region’s coral reef ecosystem score. 

Benthic – Composite gauge for benthic theme score in the Puerto Rico region is 73%, meaning it is ranked fair with some indicators meeting reference values.

Fish – Composite gauge for fish theme score in the Puerto Rico region is 63%, meaning it is ranked impaired with very few indicators meeting reference values.

Climate – Composite gauge for climate theme score in the Puerto Rico region is 75%, meaning it is ranked fair with some indicators meeting reference values.

Human connections – Composite gauge for human connections theme score in the Puerto Rico region is 71%, meaning it is ranked fair with some indicators meeting reference values.

Overall Ecosystem – Overall coral reef ecosystem score for the Puerto Rico region is 70%, meaning it is ranked fair with some indicators meeting reference values.

Description of each theme is provided in the indicator information section below.

Gauge values

90–100% Very good: All or almost all indicators meet reference values.

80–89% Good: Most indicators meet reference values.

70–79% Fair: Some indicators meet reference values. 

60–69% Impaired: Few indicators meet reference values.

0–59% Critical: Very few or no indicators meet reference values.

Description of Puerto Rico coral reefs

Puerto Rico is a volcanic island in the Greater Antilles located in the north central Caribbean between the US Virgin Islands to the east and the island of Hispaniola to the west. In addition to the main island, the islands of Mona, Monito, Desecheo, Caja de Muertos, Vieques, and Culebra make up the Commonwealth of Puerto Rico. Puerto Rico was not divided into sub-regions. The total coral reef hardbottom habitat less than 30 m in depth that was monitored is 994.5 sq km.

Description of Coral Reefs:

Coral reefs are some of the most diverse and valuable ecosystems on Earth. Though they cover less than one percent of the Earth’s surface, they are estimated to provide ecosystem services (economic and environmental services) worth hundreds of billions of dollars each year. Healthy reefs protect islands and coasts from storm surge, contribute to local economies through tourism (i.e., sportfishing, snorkeling, and diving), and contribute about one-quarter of the total fish catch, providing critical food resources for tens of millions of people particularly in developing island nations.

Data Source:

The coral reef ecosystem scores shown here were analyzed using data from the National Coral Reef Monitoring Program (NCRMP). The scores you see for each region are composite scores for all four themes (benthic, fish, climate, human connections) assessed separately and then one overall score. The overall score is an average of all four theme scores for a specific region’s coral reef ecosystem score. The sources for these values and geographical regions are obtained from the NCRMP’s Status Report Scoring Methodology for Pacific Jurisdictions and 2020 Status Report Scoring Methodology for Atlantic Jurisdictions. The definitions for the themes are as follows:

- Benthic (Corals & algae): Corals and algae make up the base of the coral reef ecosystem, providing food and shelter for fish and other marine animals.

- Fish: Coral reefs serve a vital ecological role for fish species. Fish are important to the ecology of the reef, the economy, and the livelihoods of local communities.

- Climate: Climate affects all components of a reef system. Climate change and ocean acidification influence reefs across the globe, but conditions vary at the regional and local level.

- Human Connections: Coral reef management agencies protect reef resources through management plans, public education, and involving communities in managing their resources.

Data Interpretation:

The scores you see for each region are composite scores for the themes and then one overall score. The overall score is an average of all four theme scores for the US Virgin Islands region’s coral reef ecosystem score. 

Benthic – Composite gauge for benthic theme score in the US Virgin Islands region is 75%, meaning it is ranked fair with some indicators meeting reference values.

Fish – Composite gauge for fish theme score in the US Virgin Islands region is 64%, meaning it is ranked impaired with very few indicators meeting reference values.

Climate – Composite gauge for climate theme score in the US Virgin Islands region is 79%, meaning it is ranked fair with some indicators meeting reference values.

Human connections – Composite gauge for human connections theme score in the US Virgin Islands region is 68%, meaning it is ranked impaired with very few indicators meeting reference values.

Overall Ecosystem – Overall coral reef ecosystem score for the US Virgin Islands region is 72%, meaning it is ranked fair with some indicators meeting reference values.

Description of each theme is provided in the indicator information section below.

Gauge values

90–100% Very good: All or almost all indicators meet reference values.

80–89% Good: Most indicators meet reference values.

70–79% Fair: Some indicators meet reference values. 

60–69% Impaired: Few indicators meet reference values.

0–59% Critical: Very few or no indicators meet reference values.

Description of US Virgin Islands

The US Virgin Islands are an unincorporated territory located southeast of Florida between the Atlantic Ocean and Caribbean Sea. The territory consists of three major islands and many smaller islands, all surrounded by fringing coral reefs. The US Virgin Islands were divided into two subregions to evaluate condition. The two regions are St. Thomas/St. John and St. Croix. The total coral reef hardbottom habitat less than 30 m in depth that was monitored is 358 sq km.

Description of Coral Reefs:

Coral reefs are some of the most diverse and valuable ecosystems on Earth. Though they cover less than one percent of the Earth’s surface, they are estimated to provide ecosystem services (economic and environmental services) worth hundreds of billions of dollars each year. Healthy reefs protect islands and coasts from storm surge, contribute to local economies through tourism (i.e., sportfishing, snorkeling, and diving), and contribute about one-quarter of the total fish catch, providing critical food resources for tens of millions of people particularly in developing island nations.

Data Source:

The coral reef ecosystem scores shown here were analyzed using data from the National Coral Reef Monitoring Program (NCRMP). The scores you see for each region are composite scores for all four themes (benthic, fish, climate, human connections) assessed separately and then one overall score. The overall score is an average of all four theme scores for a specific region’s coral reef ecosystem score. The sources for these values and geographical regions are obtained from the NCRMP’s Status Report Scoring Methodology for Pacific Jurisdictions and 2020 Status Report Scoring Methodology for Atlantic Jurisdictions. The definitions for the themes are as follows:

- Benthic (Corals & algae): Corals and algae make up the base of the coral reef ecosystem, providing food and shelter for fish and other marine animals.

- Fish: Coral reefs serve a vital ecological role for fish species. Fish are important to the ecology of the reef, the economy, and the livelihoods of local communities.

- Climate: Climate affects all components of a reef system. Climate change and ocean acidification influence reefs across the globe, but conditions vary at the regional and local level.

- Human Connections: Coral reef management agencies protect reef resources through management plans, public education, and involving communities in managing their resources.

The x-axis represents years. The y-axis represents the number of fish stocks or fish populations that are deemed by NOAA as overfished. Overfished means the population of fish is too low. Therefore the population cannot support a large amount of fishing.

Description of time series:

The series shows the number of fish populations that have qualified as overfished since 2000. Between 2017 and 2022 the number of overfished stocks shows no trend.

Description of Overfished stocks:

An overfished stock is a population of fish that is too low. Therefore the population can not support a large amount of fishing. A fish population can be “overfished” as the result of many factors, including overfishing, as well as habitat degradation, pollution, climate change, and disease. Stocks are determined to be overfished by NOAA as mandated in the Magnuson-Stevens Act, based on the results of stock assessments.

Overall Scores mean the following:

High values for overfished stocks are bad, low numbers are good.

• 0 - 10: The five-year overfished stock status average is very low compared to the median value.
• 10 - 25: The five-year overfished stock status average is much lower than the median value.
• 25 - 50: The five-year overfished stock status average is lower than the median value.
• 50: The five-year overfished stock status average equals the median value.
• 50 - 75: The five-year overfished stock status average is higher than the median value.
• 75 - 90: The five-year overfished stock status average is much higher than the median value.
• 90 - 100: The five-year overfished stock status average is very high compared to the median value.

Data Source:

Data were obtained from the NOAA Fisheries Fishery Stock Status website. Stocks that met the criteria for overfished status were summed by year for each region.

Values correspond to total employment in all industries in the coastal counties of a given region

Time Series

Average coastal employment within the U.S. Caribbean between 2014 and 2019 was similar to historical levels, with no trend over that period.

Gauge

The gauge value of 20 indicates that coastal employment between 2014 and 2019 for the US Caribbean was higher than 20% of all years between 2005 and 2019.

Extreme Gauge values:

A value of zero on the gauge means that the average coastal employment level over the last 5 years of data was below any annual employment level up until that point, while a value of 100 would indicate the average over that same period was above any annual employment level up until that point.

Data Source:

Coastal employment numbers were downloaded from the NOAA ENOW Explorer Tool, filtered to present only coastal county values using the Census Bureau’s list of coastal counties within each state. ENOW Explorer streamlines the task of obtaining and comparing economic data, both county and state, for the six sectors dependent on the ocean and Great Lakes: living resources, marine construction, marine transportation, offshore mineral resources, ship and boat building, and tourism and recreation. Data are derived from Economics: National Ocean Watch (ENOW), available on NOAA’s Digital Coast. Of note is that these data fail to include self-employed individuals. Coastal county employment numbers were then summed within each region for reporting purposes.

Values correspond to the number of events in a given year

Time Series

The number of Billion dollar disasters in the Caribbean in the last 5 years is trending downward but not above historical levels.

Gauge

The gauge value of 85 indicates that the number of billion dollar disasters between 2017 and 2021 for the Caribbean was higher than 85% of all years between 1980 and 2020.

Extreme Gauge values

A value of zero on the gauge means that the average number of disasters over the last 5 years of data was below any annual level up until that point, while a value of 100 would indicate the average over that same period was above any annual number of disasters up until that point. 

Indicator Source Information:

Billion dollar disaster event frequency data are taken from NOAA’s National Centers for Environmental Information. The number of disasters within each region were summed for every year of available data. Although the number is the count of unique disaster events within a region, the same disaster can impact multiple regions, meaning a sum across regions will overestimate the unique number of disasters.

Data Background and Caveats:

Events are included if they are estimated to cause more than one billion U.S. dollars in direct losses. The cost estimates of these events are adjusted for inflation using the Consumer Price Index (CPI) and are based on costs documented in several Federal and private-sector databases.