Timeseries

The Timeseries endpoints are used to generate time series data for the datasets available in Climate Engine.
There are three groups of Timeseries endpoints for points, polygons or an Earth Engine FeaturesCollection:
/timeseries/native - The native endpoints are used to generate ‘raw’ time series data.
/timeseries/interannual - The interannual endpoints are used to generate time series of yearly values of the dataset variable summarized over a season.
/timeseries/regression - The regression endpoints are used to perform regression analysis of the dataset variable summarized over a season.
NOTES:
- The ‘forecasts’ endpoints are only available for forecast datasets CFS_GRIDMET, FRET, GEPS_2WK, “GEPS_4WK.
/timeseries/native/coordinates
/timeseries/native/feature_collection
/timeseries/native/forecasts/coordinates
/timeseries/native/forecasts/feature_collection
/timeseries/standard_index/coordinates
/timeseries/standard_index/feature_collection
/timeseries/interannual/coordinates
/timeseries/interannual/feature_collection
/timeseries/regression/coordinates
/timeseries/regression/feature_collection

/timeseries/native/coordinates

Generates timeseries of values of the dataset variable and timeperiod between start_date and end_date for points or polygons.
Returns: json

Resource url example:

/timeseries/native/coordinates?dataset=GRIDMET&variable=pr&start_date=2014-01-01&end_date=2014-02-01&coordinates=[[-119.96,39.57]]

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

coordinates

yes

List of point or polygon coordinates, see https://support.climateengine.org/article/152-formatting-coordinates-for-api-requests

[[-119.96,39.57]]

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Statistic over region

mean

mean, median, min, max

dataset

yes

LANDSAT7_TOA

variable

yes

single or multiple variable

NDVI or NDVI,EVI

compute_trends

no

Also compute trends

sens_slope, polyfit

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_date

yes

2019-01-01

end_date

yes

2019-12-31

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/native/feature_collection

Generates timeseries of values of the dataset variable and timeperiod between start_date and end_date for the features of an Earth Engine FeatureCollection.
The values are averaged over the pixels lying within each feature of the feature collection.
Permissions on the asset must be such that it is readable by anyone.
Returns: json

Resource url example:

/timeseries/native/feature_collection?dataset=LANDSAT7_TOA&variable=NDVI&start_date=2014-01-01&end_date=2014-02-01&feature_collection_asset_id=WCMC/WDPA/current/points&sub_choices= ["Golden Gate"]&filter_by=NAME

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

feature_collection_asset_id

yes

EE FeatureCollection asset id, must have “Anyone can read” permissions

WCMC/WDPA/current/points

sub_choices

no

List of features to use in analysis, must be strings

[“Golden Gate”]

filter_by

no

Property name to filter sub-choices

NAME

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

area_reducer

yes

Statistic over region

mean

mean, median, min, max, stdev, count, count_un, skew, kurtosis, percentile_5, percentile_10, percentile_25, percentile_75, percentile_90, percentile_95

dataset

yes

LANDSAT7_TOA

variable

yes

single or multiple variable

NDVI or NDVI,EVI

compute_trends

no

Also compute trends

sens_slope, polyfit

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_date

yes

2019-01-01

end_date

yes

2019-12-31

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/native/forecasts/coordinates

Generates timeseries of forecast values of the dataset variable and timeperiod between start_date and end_date for points or polygons.
Returns: json

Resource url example:

/timeseries/native/forecasts/coordinates?dataset=CFS_GRIDMET&variable=pr&start_day=day01&end_day=day28&coordinates=[[-119.96,39.57]]

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

coordinates

yes

List of point or polygon coordinates, see https://support.climateengine.org/article/152-formatting-coordinates-for-api-requests

[[-119.96,39.57]]

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Statistic over region

mean

mean, median, min, max

dataset

yes

CFS_GRIDMET

CFS_GRIDMET, FRET, GEPS_2WK,GEPS_4WK

variable

yes

pet, pr, tmmn, tmmx

pr

model

yes

ens01 to en<xx> for individual models (see documentation), ens_min, ens_max, ens_mean, ens_median

ens_mean

ens_max

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/native/forecasts/feature_collection

Generates timeseries of forecast values of the dataset variable and timeperiod between start_date and end_date for the features of an Earth Engine FeatureCollection.
The values are averaged over the pixels lying within each feature of the feature collection.
Permissions on the asset must be such that it is readable by anyone.
Returns: json

Resource url example:

/timeseries/native/forecasts/feature_collection?dataset=CFS_GRIDMET&variable=pet&start_day=day01&end_day=day28&feature_collection_asset_id=WCMC/WDPA/current/points&sub_choices= ["Golden Gate"]&filter_by=NAME

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

feature_collection_asset_id

yes

EE FeatureCollection asset id, must have “Anyone can read” permissions

WCMC/WDPA/current/points

sub_choices

no

List of features to use in analysis, must be strings

[“Golden Gate”]

filter_by

no

Property name to filter sub-choices

NAME

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

area_reducer

yes

Statistic over region

mean

mean, median, min, max, stdev, count, count_un, skew, kurtosis, percentile_5, percentile_10, percentile_25, percentile_75, percentile_90, percentile_95

dataset

yes

CFS_GRIDMET

CFS_GRIDMET, FRET, GEPS_2WK,GEPS_4WK

variable

yes

pet, pr, tmmn, tmmx

pet

model

yes

ens01 to en<xx> for individual models (see documentation), ens_min, ens_max, ens_mean, ens_median

ens_mean

ens_max

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/standard_index/coordinates

Generates timeseries of standard index based on inputs for points or polygons.
Standard Precipitation Index (SPI) for example is the standard index of precipitation. To calculate SPI, you would use precipitation as the variable.
Similarly, the Standardized Precipitation Evapotranspiration Index (SPEI) potential water deficit (precipitation minus potential evapotranspiration) would be used as the variable.
In the case of a buffer, the values are reduced over the pixels lying within the point before calculating the standard index.
Note: Cannot use pre-calculated drought indices, i.e. GridMET Drought as dataset/variable.
Available variables: spi, spei, eddi, speih, edddih
Returns: json

Resource url example:

/timeseries/standard_index/coordinates?dataset=PRISM_MONTHLY&variable=ppt&area_reducer=mean&start_date=1991-01-01&end_date=2020-12-31&start_year=1991&end_year=2020&accumulation=3&distribution=loglogistic&coordinates=%5B%5B-121.61%2C38.78%5D%5D

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

coordinates

yes

List of point or polygon coordinates, see https://support.climateengine.org/article/152-formatting-coordinates-for-api-requests

[[-121.61,38.78]]

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Statistic over region

mean

mean, median, min, max

dataset

yes

Dataset of interest

PRISM_MONTHLY

PRISM_MONTHLY, GRIDMET

variable

yes

Variable of interest

spi

spi, spei, eddi, speih, eddih

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_date

yes

Start date for timeseries

1991-01-01

2019-01-01

end_date

yes

End date for timeseries

2020-12-31

2019-12-31

start_year

yes

Start year for climatology

1991

1990

end_year

yes

End year for climatology

2020

2020

accumulation

yes

Accumulation period for index. Same unit as dataset.

3

3, 30, 12, 365

distribution

yes

The distribution used to calculate the standard index

loglogistic

loglogistic, gamma, nonparametric

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/standard_index/feature_collection

Generates timeseries of standard index based on inputs for an Earth Engine FeatureCollection.
Standard Precipitation Index (SPI) for example is the standard index of precipitation. To calculate SPI, you would use precipitation as the variable.
Similarly, the Standardized Precipitation Evapotranspiration Index (SPEI) potential water deficit (precipitation minus potential evapotranspiration) would be used as the variable.
The values are reduced over the pixels lying within the feature before calculating the standard index.
Note: Cannot use pre-calculated drought indices, i.e. GridMET Drought as dataset/variable.
Available variables: spi, spei, eddi, speih, edddih
Returns: json

Resource url example:

/timeseries/standard_index/feature_collection?dataset=PRISM_MONTHLY&variable=ppt&area_reducer=mean&start_date=1991-01-01&end_date=2020-12-31&start_year=1991&end_year=2020&accumulation=3&distribution=loglogistic&feature_collection_asset_id=USGS%2FWBD%2F2017%2FHUC08

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

feature_collection_asset_id

yes

EE FeatureCollection asset id, must have “Anyone can read” permissions

USGS/WBD/2017/HUC08

sub_choices

no

List of features you are interested in

Piscataqua-Salmon Falls

filter_by

no

Name of the property you want to filter by

name

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Reducer over the polygon

mean

mean, median, min, max

dataset

yes

Dataset of interest

PRISM_MONTHLY

PRISM_MONTHLY, GRIDMET

variable

yes

Variable of interest

spi

spi, spei, eddi, speih, edddih

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_date

yes

Start date for timeseries

1991-01-01

2019-01-01

end_date

yes

End date for timeseries

2020-12-31

2019-12-31

start_year

yes

Start year for climatology

1991

1990

end_year

yes

End year for climatology

2020

2020

accumulation

yes

Accumulation period for index. Same unit as dataset.

3

3, 30, 12, 365

distribution

yes

The distribution used to calculate the standard index

loglogistic

loglogistic, gamma, nonparametric

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/interannual/coordinates

Generates timeseries of yearly values of the dataset variable summarized over a season for points or polygons.
Returns: json

Resource url example:

/timeseries/interannual/coordinates?dataset=LANDSAT7_TOA&variable=NDVI&temporal_statistic=Mean&start_day=01&end_day=30&start_month=01&end_month=12&start_year=2016&end_year=2018&coordinates=[[-119.96,39.57], [-119, 39]]

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

coordinates

yes

List of point or polygon coordinates, see https://support.climateengine.org/article/152-formatting-coordinates-for-api-requests

[[-119.96,39.57]]

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Statistic over region

mean

mean, median, min, max

dataset

yes

LANDSAT7_TOA

variable

yes

single or multiple variable

NDVI or NDVI,EVI

compute_trends

no

Also compute trends

sens_slope, polyfit

temporal_statistic

yes

mean

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_day

yes

01

end_day

yes

30

start_month

yes

01

end_month

yes

12

start_year

yes

2016

end_year

yes

2018

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/interannual/feature_collection

Generates timeseries of yearly values of the dataset variable summarized over a season for the features of an Earth Engine FeatureCollection.
The values are averaged over the pixels lying within each feature of the feature collection.
Permissions on the asset must be such that it is readable by anyone.
Returns: json

Resource url example:

/timeseries/interannual/feature_collection?dataset=LANDSAT7_TOA&variable=NDVI&temporal_statistic=Mean&start_day=01&end_day=30&start_month=01&end_month=12&start_year=2014&end_year=2018&feature_collection_asset_id=WCMC/WDPA/current/points&sub_choices=["Golden Gate"]&filter_by=NAME

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

feature_collection_asset_id

yes

EE FeatureCollection asset id, must have “Anyone can read” permissions

WCMC/WDPA/current/points

sub_choices

no

List of features to use in analysis, must be strings

[“Golden Gate”]

filter_by

no

Property name to filter sub-choices

NAME

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

area_reducer

yes

Statistic over region

mean

mean, median, min, max, stdev, count, count_un, skew, kurtosis, percentile_5, percentile_10, percentile_25, percentile_75, percentile_90, percentile_95

dataset

yes

LANDSAT7_TOA

variable

yes

single or multiple variable

NDVI or NDVI,EVI

compute_trends

no

Also compute trends

sens_slope, polyfit

temporal_statistic

yes

mean, median, max, min, total

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_day

yes

01

end_day

yes

30

start_month

yes

01

end_month

yes

12

start_year

yes

2016

end_year

yes

2018

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/regression/coordinates

Performs regression analysis of the dataset variable summarized over a season for points or polygons.
Returns: json

Resource url example:

/timeseries/regression/coordinates?dataset=LANDSAT7_TOA&variable=NDVI&temporal_statistic=Mean&var2_dataset=LANDSAT7_TOA&var2_variable=NDSI&var2_temporal_statistic=Mean&start_day=01&end_day=30&start_month=01&end_month=12&var2_start_day=01&var2_end_day=30&var2_start_month=01&var2_end_month=12&start_year=2016&end_year=2018&coordinates=[[-119.96,39.57]]

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

coordinates

yes

List of point or polygon coordinates, see https://support.climateengine.org/article/152-formatting-coordinates-for-api-requests

[[-119.96,39.57]]

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

buffer

no

List of integer buffers (meters) to be applied to each geometry

[400]

area_reducer

yes

Statistic over region

mean

dataset

yes

LANDSAT7_TOA

variable

yes

NDVI

mask_image_id

no

Image mask ID

mask_band

no

Mask band

mask_value

no

Image mask value

start_day

yes

01

end_day

yes

30

start_month

yes

01

end_month

yes

12

temporal_statistic

yes

mean, median, max, min, total

var2_dataset

yes

LANDSAT7_TOA

var2_variable

yes

NDSI

var2_mask_image_id

no

Image mask ID for the second dataset/variable

var2_mask_band

no

Mask band for the second dataset/variable

var2_mask_value

no

Image mask value for the second dataset/variable

var2_start_day

yes

01

var2_end_day

yes

30

var2_start_month

yes

01

var2_end_month

yes

12

start_year

yes

2016

end_year

yes

2018

var2_temporal_statistic

yes

mean

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json

/timeseries/regression/feature_collection

Performs regression analysis of the dataset variable summarized over a season for the features of an Earth Engine FeatureCollection.
The values are averaged over the pixels lying within each feature of the feature collection.
Permissions on the asset must be such that it is readable by anyone.
Returns: json

Resource url example:

/timeseries/regression/feature_collection?dataset=LANDSAT7_TOA&variable=NDVI&temporal_statistic=Mean&var2_dataset=LANDSAT7_TOA&var2_variable=NDSI&var2_temporal_statistic=Mean&start_day=01&end_day=30&start_month=01&end_month=12&var2_start_day=01&var2_end_day=30&var2_start_month=01&var2_end_month=12&start_year=2016&end_year=2018&feature_collection_asset_id=USGS/WBD/2017/HUC08&sub_choices=["Animas"]&filter_by=name

NAME

REQUIRED

DESCRIPTION

DEFAULT

EXAMPLE

feature_collection_asset_id

yes

EE FeatureCollection asset id, must have “Anyone can read” permissions

USGS/WBD/2017/HUC08

sub_choices

no

List of features to use in analysis, must be strings

[“Animas”]

filter_by

no

Property name to filter sub-choices

name

simplify_geometry

no

maxError in meters, see ee.Feature.simplify

None

area_reducer

yes

Statistic over region

mean

mean, median, min, max

dataset

yes

LANDSAT7_TOA

variable

yes

NDVI

temporal_statistic

yes

mean

var2_dataset

yes

LANDSAT7_TOA

variable

yes

NDSI

temporal_statistic

yes

mean

start_day

yes

01

end_day

yes

30

start_month

yes

01

end_month

yes

12

var2_start_day

yes

01

var2_end_day

yes

30

var2_start_month

yes

01

var2_end_month

yes

12

start_year

yes

2016

end_year

yes

2018

export_path

no

Export CSV results to a Google cloud storage bucket (must have correct permissions)

climate-engine-public/my_csv_file.csv

export_format

no

File format of export

json

csv, json